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Junior Subordinated Debentures Outstanding (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Subordinated Borrowing [Line Items] |  |  |
Junior Subordinated Debentures Amount Outstanding |  | $ 359,179 | $ 358,879
Capital Securities Amount Outstanding |  | $ 346,402 |
New York Community Capital Trust V (BONUSESSM Units) |  |  |
Subordinated Borrowing [Line Items] |  |  |
Interest Rate of Capital Securities and Debentures |  | 6.00% |
Junior Subordinated Debentures Amount Outstanding |  | $ 145,253 |
Capital Securities Amount Outstanding |  | $ 138,902 |
Date of Original Issue |  | Nov. 04, 2002 |
Stated Maturity |  | Nov. 01, 2051 |
First Optional Redemption Date | [1] | Nov. 04, 2007 |
New York Community Capital Trust X |  |  |
Subordinated Borrowing [Line Items] |  |  |
Interest Rate of Capital Securities and Debentures |  | 3.188% |
Junior Subordinated Debentures Amount Outstanding |  | $ 123,712 |
Capital Securities Amount Outstanding |  | $ 120,000 |
Date of Original Issue |  | Dec. 14, 2006 |
Stated Maturity |  | Dec. 15, 2036 |
First Optional Redemption Date | [2] | Dec. 15, 2011 |
PennFed Capital Trust III |  |  |
Subordinated Borrowing [Line Items] |  |  |
Interest Rate of Capital Securities and Debentures |  | 4.838% |
Junior Subordinated Debentures Amount Outstanding |  | $ 30,928 |
Capital Securities Amount Outstanding |  | $ 30,000 |
Date of Original Issue |  | Jun. 02, 2003 |
Stated Maturity |  | Jun. 15, 2033 |
First Optional Redemption Date | [2] | Jun. 15, 2008 |
New York Community Capital Trust XI |  |  |
Subordinated Borrowing [Line Items] |  |  |
Interest Rate of Capital Securities and Debentures |  | 3.345% |
Junior Subordinated Debentures Amount Outstanding |  | $ 59,286 |
Capital Securities Amount Outstanding |  | $ 57,500 |
Date of Original Issue |  | Apr. 16, 2007 |
Stated Maturity |  | Jun. 30, 2037 |
First Optional Redemption Date | [2] | Jun. 30, 2012 |
[1] | Callable subject to certain conditions as described in the prospectus filed with the SEC on November 4, 2002.
[2] | Callable from this date forward.

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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