XML 97 R85.htm IDEA: XBRL DOCUMENT
v3.19.1

Borrowed Funds - Additional Information (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2018
Statement of Financial Position [Abstract] |
Minimum investment in the capital stock of the FHLB | 0.20%
Specified value of certain transactions between the Bank and the FHLB | 4.50%

X
- Definition Federal Home Loan Bank Stock Percentage Of Minimum Investment + References No definition available. + Details
Name: | ocfc_FederalHomeLoanBankStockPercentageOfMinimumInvestment
Namespace Prefix: | ocfc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Transactions Between Federal Home Loan Bank And Bank + References No definition available. + Details
Name: | ocfc_PercentageOfTransactionsBetweenFederalHomeLoanBankAndBank
Namespace Prefix: | ocfc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StatementOfFinancialPositionAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration