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SECURITIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014
Available-for-sale debt securities [Abstract]
Fair value	$ 577,460us-gaap_AvailableForSaleSecuritiesDebtSecurities		$ 657,870us-gaap_AvailableForSaleSecuritiesDebtSecurities
Available-for-sale equity securities [Abstract]
Fair value	470,997us-gaap_AvailableForSaleSecuritiesEquitySecurities		482,346us-gaap_AvailableForSaleSecuritiesEquitySecurities
Available-for-sale securities [Abstract]
Amortized cost	1,048,818us-gaap_AvailableForSaleSecuritiesAmortizedCost		1,148,414us-gaap_AvailableForSaleSecuritiesAmortizedCost
Gross unrealized gains	8,554us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax		7,038us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Gross unrealized (losses)	(8,915)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax		(15,236)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Fair value	1,048,457us-gaap_AvailableForSaleSecurities		1,140,216us-gaap_AvailableForSaleSecurities
Trust preferred securities included in available-for-sale securities [Abstract]
Fair value	1,048,457us-gaap_AvailableForSaleSecurities		1,140,216us-gaap_AvailableForSaleSecurities
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	179,390us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue		280,692us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
LESS THAN 12 MONTHS, Unrealized (Losses)	(814)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss		(1,442)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
OVER 12 MONTHS, Fair Value	329,911us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue		450,852us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
OVER 12 MONTHS, Unrealized (Losses)	(8,101)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss		(13,794)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
TOTAL, Fair Value	509,301us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue		731,544us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
TOTAL, Unrealized (Losses)	(8,915)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss		(15,236)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
AMORTIZED COST [Abstract]
Due in one year or less	3,000us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost		2,999us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
Due after one year through five years	2,908us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost		9,922us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
Due after five years through ten years	286,966us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost		285,413us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
Due after ten years	177,204us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost		185,851us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
Total	470,078us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis		484,185us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
Mortgage-backed securities	578,196us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost		663,690us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
Common equities and mutual funds	544cash_AvailableForSaleSecuritiesEquityMaturitiesWithoutSingleMaturityDateAmortizedCostBasis		539cash_AvailableForSaleSecuritiesEquityMaturitiesWithoutSingleMaturityDateAmortizedCostBasis
Amortized cost	1,048,818us-gaap_AvailableForSaleSecuritiesAmortizedCost		1,148,414us-gaap_AvailableForSaleSecuritiesAmortizedCost
FAIR VALUE [Abstract]
Due in one year or less	3,035us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue		3,048us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
Due after one year through five years	2,934us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue		10,079us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Due after five years through ten years	289,666us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue		285,698us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
Due after ten years	174,509us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue		182,696us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
Total	470,144us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate		481,521us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate
Mortgage-backed securities	577,460us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue		657,870us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
Common equities and mutual funds	853cash_AvailableForSaleSecuritiesEquityMaturitiesWithoutSingleMaturityDateFairValue		825cash_AvailableForSaleSecuritiesEquityMaturitiesWithoutSingleMaturityDateFairValue
Total available for sale securities	1,048,457us-gaap_AvailableForSaleSecurities		1,140,216us-gaap_AvailableForSaleSecurities
Held-to-maturity Securities [Abstract]
Amortized cost	303,315us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment		282,933us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
Gross unrealized gains	1,405us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain		942us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
Gross unrealized (losses)	(2,171)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss		(4,563)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
Fair value	302,549us-gaap_HeldToMaturitySecuritiesFairValue		279,312us-gaap_HeldToMaturitySecuritiesFairValue
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
LESS THAN 12 MONTHS, Fair Value	5,539us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue		1,056us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
OVER 12 MONTHS, Fair Value	204,887us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue		230,200us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
TOTAL, Fair Value	210,426us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue		231,256us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
LESS THAN 12 MONTHS, Unrealized (Losses)	(10)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss		(2)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
OVER 12 MONTHS, Unrealized (Losses)	(2,161)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss		(4,561)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
TOTAL, Unrealized (Losses)	(2,171)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss		(4,563)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
AMORTIZED COST [Abstract]
Due in one year or less	345us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount		347us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
Due after one year through five years	5,367us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount		4,726us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
Due after five years through ten years	104,112us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount		91,532us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
Due after ten years	122,707us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount		116,294us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
Total	232,531us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis		212,899us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
Mortgage-backed securities	70,784us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount		70,034us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount
Amortized cost	303,315us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment		282,933us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
FAIR VALUE [Abstract]
Due in one year or less	345us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue		348us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
Due after one year through five years	5,320us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue		4,718us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Due after five years through ten years	103,403us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue		89,984us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
Due after ten years	123,508us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue		116,090us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue
Total	232,576us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue		211,140us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue
Mortgage-backed securities	69,973us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue		68,172us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
Total held to maturity securities	302,549us-gaap_HeldToMaturitySecuritiesFairValue		279,312us-gaap_HeldToMaturitySecuritiesFairValue
Trust Preferred Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	19,381us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	19,368us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Available-for-sale securities [Abstract]
Fair value	16,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	17,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	19,381us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	19,368us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Fair value	16,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	17,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Unrealized gain (loss)	(2,881)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	(1,868)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
FAIR VALUE [Abstract]
Total available for sale securities	16,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	17,500us-gaap_AvailableForSaleSecurities / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
S&P Credit Rating, BBB- [Member] | Moody Credit Rating, Baa2 [Member] | PNC Capital Trust [Member] | Trust Preferred Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,963us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,962us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Available-for-sale securities [Abstract]
Fair value	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	4,963us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,962us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Fair value	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Unrealized gain (loss)	(763)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	(562)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
FAIR VALUE [Abstract]
Total available for sale securities	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa2RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBMinusRatingMember / dei_LegalEntityAxis = cash_PncCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
S&P Credit Rating, BB+ [Member] | Moody Credit Rating, Baa3 [Member] | Key Corp Capital I [Member] | Trust Preferred Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,986us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,985us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Available-for-sale securities [Abstract]
Fair value	4,100us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	4,986us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,985us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Fair value	4,100us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Unrealized gain (loss)	(886)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	(585)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
FAIR VALUE [Abstract]
Total available for sale securities	4,100us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBPlusRatingMember / dei_LegalEntityAxis = cash_KeyCorpCapitalIMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
S&P Credit Rating, BBB+ [Member] | Moody Credit Rating, A3 [Member] | Wells Fargo (Corestates Capital) Trust [Member] | Trust Preferred Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,455us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,444us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Available-for-sale securities [Abstract]
Fair value	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	4,455us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,444us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Fair value	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Unrealized gain (loss)	(255)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	(44)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
FAIR VALUE [Abstract]
Total available for sale securities	4,200us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,400us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysA3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBBPlusRatingMember / dei_LegalEntityAxis = cash_WellsFargoCorestatesCapitalTrustMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
S&P Credit Rating BB [Member] | Moody Credit Rating, Baa3 [Member] | Huntington Capital Trust II SE [Member] | Trust Preferred Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,977us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,977us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Available-for-sale securities [Abstract]
Fair value	4,000us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,300us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	4,977us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,977us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Fair value	4,000us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,300us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Unrealized gain (loss)	(977)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	(677)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
FAIR VALUE [Abstract]
Total available for sale securities	4,000us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]	4,300us-gaap_AvailableForSaleSecurities / us-gaap_CreditRatingMoodysAxis = us-gaap_MoodysBaa3RatingMember / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsBBRatingMember / dei_LegalEntityAxis = cash_HuntingtonCapitalTrustIiSeMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember	[1]
Debt Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	1,048,274us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Gross unrealized gains	8,239us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Gross unrealized (losses)	(8,909)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Fair value	1,047,604us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Available-for-sale securities [Abstract]
Amortized cost			1,147,875us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Gross unrealized gains			6,747us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Gross unrealized (losses)			(15,231)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Fair value			1,139,391us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	1,048,274us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Fair value			1,139,391us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	179,390us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		280,569us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(814)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		(1,437)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
OVER 12 MONTHS, Fair Value	329,788us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		450,852us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
OVER 12 MONTHS, Unrealized (Losses)	(8,095)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		(13,794)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
TOTAL, Fair Value	509,178us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		731,421us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
TOTAL, Unrealized (Losses)	(8,909)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember		(15,231)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
AMORTIZED COST [Abstract]
Amortized cost			1,147,875us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
FAIR VALUE [Abstract]
Total available for sale securities			1,139,391us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Trust Preferred and Corporate Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	23,684us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		48,747us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Gross unrealized gains	35us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		191us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Gross unrealized (losses)	(2,905)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		(2,009)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Fair value	20,814us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		46,929us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	23,684us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		48,747us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		6,073us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
LESS THAN 12 MONTHS, Unrealized (Losses)	0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		(47)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
OVER 12 MONTHS, Fair Value	17,779us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		25,359us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
OVER 12 MONTHS, Unrealized (Losses)	(2,905)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		(1,962)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
TOTAL, Fair Value	17,779us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		31,432us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
TOTAL, Unrealized (Losses)	(2,905)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember		(2,009)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_TrustPreferredAndCorporateSecuritiesMember
Small Business administration Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	36,449us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember		66,541us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Gross unrealized gains	1,175us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember		543us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Gross unrealized (losses)	0us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember		(72)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Fair value	37,624us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember		67,012us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	36,449us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember		66,541us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value			8,454us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
LESS THAN 12 MONTHS, Unrealized (Losses)			(72)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
OVER 12 MONTHS, Fair Value			0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
OVER 12 MONTHS, Unrealized (Losses)			0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
TOTAL, Fair Value			8,454us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
TOTAL, Unrealized (Losses)			(72)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_SmallBusinessAdministrationSecuritiesMember
Non Bank Qualified Obligation U S States And Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	409,945us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		368,897us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Gross unrealized gains	4,047us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		2,494us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Gross unrealized (losses)	(2,286)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(3,811)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Fair value	411,706us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		367,580us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	409,945us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		368,897us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	27,499us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		27,062us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(113)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(70)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Fair Value	147,129us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		191,146us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Unrealized (Losses)	(2,173)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(3,741)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
TOTAL, Fair Value	174,628us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		218,208us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
TOTAL, Unrealized (Losses)	(2,286)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(3,811)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Held-to-maturity Securities [Abstract]
Amortized cost	213,239us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		193,595us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Gross unrealized gains	1,365us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		894us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Gross unrealized (losses)	(1,096)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(2,329)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Fair value	213,508us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		192,160us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
LESS THAN 12 MONTHS, Fair Value	2,077us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Fair Value	122,185us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		147,949us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
TOTAL, Fair Value	124,262us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		147,949us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(2)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Unrealized (Losses)	(1,094)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(2,329)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
TOTAL, Unrealized (Losses)	(1,096)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		(2,329)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
AMORTIZED COST [Abstract]
Amortized cost	213,239us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		193,595us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
FAIR VALUE [Abstract]
Total held to maturity securities	213,508us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember		192,160us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_NonBankQualifiedObligationUSStatesAndPoliticalSubdivisionsMember
Mortgage-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	578,196us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		663,690us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Gross unrealized gains	2,982us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		3,519us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Gross unrealized (losses)	(3,718)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(9,339)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Fair value	577,460us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		657,870us-gaap_AvailableForSaleSecuritiesDebtSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Trust preferred securities included in available-for-sale securities [Abstract]
Amortized cost	578,196us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		663,690us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	151,891us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		238,980us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(701)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(1,248)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
OVER 12 MONTHS, Fair Value	164,880us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		234,347us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
OVER 12 MONTHS, Unrealized (Losses)	(3,017)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(8,091)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
TOTAL, Fair Value	316,771us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		473,327us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
TOTAL, Unrealized (Losses)	(3,718)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(9,339)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Held-to-maturity Securities [Abstract]
Amortized cost	70,784us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		70,034us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Gross unrealized gains	0us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		0us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Gross unrealized (losses)	(811)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(1,862)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Fair value	69,973us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		68,172us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
LESS THAN 12 MONTHS, Fair Value	2,603us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
OVER 12 MONTHS, Fair Value	67,370us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		68,172us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
TOTAL, Fair Value	69,973us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		68,172us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(2)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
OVER 12 MONTHS, Unrealized (Losses)	(809)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(1,862)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
TOTAL, Unrealized (Losses)	(811)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		(1,862)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
AMORTIZED COST [Abstract]
Amortized cost	70,784us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		70,034us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
FAIR VALUE [Abstract]
Total held to maturity securities	69,973us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember		68,172us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_MortgageBackedSecuritiesMember
Obligations of States and Political Subdivisions [Member]
Held-to-maturity Securities [Abstract]
Amortized cost	19,292us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		19,304us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Gross unrealized gains	40us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		48us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Gross unrealized (losses)	(264)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		(372)us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Fair value	19,068us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		18,980us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
LESS THAN 12 MONTHS, Fair Value	859us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		1,056us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Fair Value	15,332us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		14,079us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
TOTAL, Fair Value	16,191us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		15,135us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
LESS THAN 12 MONTHS, Unrealized (Losses)	(6)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		(2)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
OVER 12 MONTHS, Unrealized (Losses)	(258)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		(370)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
TOTAL, Unrealized (Losses)	(264)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		(372)us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
AMORTIZED COST [Abstract]
Amortized cost	19,292us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		19,304us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
FAIR VALUE [Abstract]
Total held to maturity securities	19,068us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember		18,980us-gaap_HeldToMaturitySecuritiesFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Common Equities and Mutual Funds [Member]
Available-for-sale equity securities [Abstract]
Amortized cost	544us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Gross unrealized gains	315us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Gross unrealized (losses)	(6)us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Fair value	853us-gaap_AvailableForSaleSecuritiesEquitySecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Available-for-sale securities [Abstract]
Amortized cost			539us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Gross unrealized gains			291us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Gross unrealized (losses)			(5)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Fair value			825us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Trust preferred securities included in available-for-sale securities [Abstract]
Fair value			825us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
Available-for-sale securities in a continuous unrealized loss position [Abstract]
LESS THAN 12 MONTHS, Fair Value	0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		123us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
LESS THAN 12 MONTHS, Unrealized (Losses)	0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		(5)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
OVER 12 MONTHS, Fair Value	123us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
OVER 12 MONTHS, Unrealized (Losses)	(6)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		0us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
TOTAL, Fair Value	123us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		123us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
TOTAL, Unrealized (Losses)	(6)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember		(5)us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
AMORTIZED COST [Abstract]
Amortized cost			539us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
FAIR VALUE [Abstract]
Total available for sale securities			$ 825us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = cash_CommonEquitiesAndMutualFundsMember
[1] Trust preferred securities are single-issuance. There are no known deferrals, defaults or excess subordination.

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