Deposits and Related Interest (Maturities of Time Deposits) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Maturities of Time Deposits [Abstract]
Time Deposit Maturities Less Than Three Month	$ 342,429
Time Deposit Maturities Three To Twelve Month	590,965
Total Time deposits	933,394
Time Deposit Maturities, Year Two	454,186
Time Deposit Maturities, Year Three	210,567
Time Deposit Maturities, Year Four	50,067
Time Deposit Maturities, Year Five	18,926
Certificates of deposit	$ 1,667,140

Time Deposit Maturities Less Than Three Month

No definition available.

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- Definition

Time Deposit Maturities Three To Twelve Month

+ References

No definition available.

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- Definition

Total Time Deposits Excluding Equity Indexes Options

+ References

No definition available.

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- Definition

Amount of time deposits maturing in the fifth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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Amount of time deposits maturing in the fourth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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Amount of time deposits maturing in the next fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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Amount of time deposits maturing in the third fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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Amount of time deposits maturing in the second fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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