XML 45 R52.htm IDEA: XBRL DOCUMENT v3.19.3

Securities Available for Sale - Schedule Of Available For Sale Securities Pledged (Detail) - Securities Available for Sale [Member] - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged	$ 281,158	$ 69,044
FHLB of New York [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged	158,679	24,099
Secure Public Funds On Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged	6,898
Federal Reserve ("FRB") [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged	107,316	43,623
Depositor Sweep Accounts [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged	$ 8,265	$ 1,322

X

- Definition

Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

+ Details

Name:	us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis=srt_FederalHomeLoanBankOfNewYorkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=krny_SecurePublicFundsOnDepositMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=krny_FederalReserveBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=krny_DepositorSweepAccountsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: