XML 25 R11.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Reclassifications Out of Accumulated Other Comprehensive Loss | 12 Months Ended
--- | ---
Dec. 31, 2017
Reclassifications Out of Accumulated Other Comprehensive Loss | NOTE 3: RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE LOSS
(in thousands) |  | For the Twelve Months Ended December 31, 2017
Details about Accumulated Other Comprehensive Loss |  | Amount Reclassified from Accumulated Other Comprehensive Loss (1) |  |  | Affected Line Item in the Consolidated Statements of Operations and Comprehensive Income (Loss)
Unrealized gains on available-for-sale securities |  | $ | 2,988 |  |  | Net gain on sales of securities
|  |  | (1,245 | ) |  | Income tax expense
|  | $ | 1,743 |  |  | Net gain on sales of securities, net of tax
Amortization of defined benefit pension plan items: |  |  |  |  |  |
Past service liability |  | $ | 249 |  |  | Included in the computation of net periodic (credit) expense (2)
Actuarial losses |  |  | (8,484 | ) |  | Included in the computation of net periodic (credit) expense (2)
|  |  | (8,235 | ) |  | Total before tax
|  |  | 3,432 |  |  | Tax benefit
|  | $ | (4,803 | ) |  | Amortization of defined benefit pension plan items, net of tax
Total reclassifications for the period |  | $ | (3,060 | ) |  |
(1) | Amounts in parentheses indicate expense items.
(2) | See Note 12, “Employee Benefits,” for additional information.

X
- Definition Accumulated Other Comprehensive Income [Text Block] + References No definition available. + Details
Name: | nyb_AccumulatedOtherComprehensiveIncomeTextBlock
Namespace Prefix: | nyb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration