Investments Held by New York Community Plan (Parenthetical) (Detail)	Dec. 31, 2013
Mutual Funds - Equity | Large-Cap Value
Defined Benefit Plan Disclosure [Line Items]
Number of stocks held	150
Mutual Funds - Equity | Minimum | Small-Cap Core
Defined Benefit Plan Disclosure [Line Items]
Number of stocks held	300
Common/Collective Trusts - Equity | Minimum | Large-Cap Value
Defined Benefit Plan Disclosure [Line Items]
Number of stocks held	60
Common/Collective Trusts - Equity | Maximum | Large-Cap Value
Defined Benefit Plan Disclosure [Line Items]
Number of stocks held	70