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Accumulated Other Comprehensive Income | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Accumulated Other Comprehensive Income | 5. Accumulated Other Comprehensive Income: The following table presents the tax effects of each component of other comprehensive income (loss) for the three months ended March 31, 2018 and 2017:
|  | Three months ended March 31,
|  | 2018 |  | 2017
|  | Pre-tax amount |  | Tax benefit/(expense) |  | After-tax amount |  | Pre-tax amount |  | Tax benefit/(expense) |  | After-tax amount
Defined benefit and other postretirement plans |  |  |  |  |  |  |  |  |  |  |  |
Amortization and unrealized losses |  | $ | (24 | ) |  | $ | 6 |  |  | $ | (18 | ) |  | $ | (194 | ) |  | $ | 13 |  |  | $ | (181 | )
Benefit plans, net |  | (24 | ) |  | 6 |  |  | (18 | ) |  | (194 | ) |  | 13 |  |  | (181 | )
Net gain (loss) from hedging activities |  | 2,912 |  |  | (729 | ) |  | 2,183 |  |  | (2,862 | ) |  | 1,093 |  |  | (1,769 | )
Foreign currency translation |  | 10,114 |  |  | (1,443 | ) |  | 8,671 |  |  | 17,247 |  |  | (1,910 | ) |  | 15,337 |
Other comprehensive income |  | $ | 13,002 |  |  | $ | (2,166 | ) |  | $ | 10,836 |  |  | $ | 14,191 |  |  | $ | (804 | ) |  | $ | 13,387 |
The following table presents the change in accumulated other comprehensive income (loss), net of tax, by component for the three months ended March 31, 2018 and 2017:
|  | Defined benefit and other postretirement plans |  | Net gain (loss) from hedging activities |  | Foreign currency translation |  | Total
December 31, 2017 |  | $ | 7,412 |  |  | $ | 967 |  |  | $ | (4,068 | ) |  | $ | 4,311 |
Other comprehensive income (loss) before reclassifications |  | (32 | ) |  | 2,188 |  |  | 7,367 |  |  | 9,523 |
Amounts reclassified from accumulated other comprehensive income(1) |  | 14 |  |  | (5 | ) |  | — |  |  | 9 |
Net current period other comprehensive income (loss) |  | (18 | ) |  | 2,183 |  |  | 7,367 |  |  | 9,532 |
March 31, 2018 |  | $ | 7,394 |  |  | $ | 3,150 |  |  | $ | 3,299 |  |  | $ | 13,843 |
December 31, 2016 |  | $ | 7,513 |  |  | $ | 4,557 |  |  | $ | (65,781 | ) |  | $ | (53,711 | )
Other comprehensive income (loss) before reclassifications |  | (214 | ) |  | (1,785 | ) |  | 15,921 |  |  | 13,922 |
Amounts reclassified from accumulated other comprehensive income (loss)(1) |  | 33 |  |  | 16 |  |  | — |  |  | 49 |
Net current period other comprehensive income (loss) |  | (181 | ) |  | (1,769 | ) |  | 15,921 |  |  | 13,971 |
March 31, 2017 |  | $ | 7,332 |  |  | $ | 2,788 |  |  | $ | (49,860 | ) |  | $ | (39,740 | )
(1) | See the following table for details about these reclassifications.
The following table presents the reclassifications out of accumulated other comprehensive income (loss) for the three months ended March 31, 2018 and 2017. Amounts in parenthesis indicate debits to profit/loss.
Details about Accumulated Other Comprehensive Income (Loss) Components |  | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(a) | Affected Line Item in the Statements of Operations
|  | Three months ended March 31, |  |
|  | 2018 |  | 2017 |  |
Defined benefit and other postretirement plans |  |  |  |  |  |
Amortization of prior service cost |  | $ | 19 |  |  | $ | 20 |  |  | (b)
Amortization of net gain (loss) |  | (2 | ) |  | 19 |  |  | (b)
|  | 17 |  |  | 39 |  |  | Total before tax
|  | (3 | ) |  | (6 | ) |  | Tax (expense) benefit
|  | $ | 14 |  |  | $ | 33 |  |  | Net of tax
Net gain (loss) from hedging activities |  |  |  |  |  |
Interest rate caps |  | $ | (35 | ) |  | $ | (2 | ) |  | Interest expense
Natural gas swaps |  | 28 |  |  | 18 |  |  | Cost of goods sold
|  | (7 | ) |  | 16 |  |  | Total before tax
|  | 2 |  |  | — |  |  | Tax (expense) benefit
|  | $ | (5 | ) |  | $ | 16 |  |  | Net of tax
Total reclassifications for the period |  | $ | 9 |  |  | $ | 49 |  |  | Net of tax
(a) | Amounts in parentheses indicate debits to profit/loss.
(b) | These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension and other postretirement cost (see Note 15 to these condensed consolidated financial statements for additional details).

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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