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Shareholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2018
Stockholders' Equity Note [Abstract] |
Total Comprehensive Income (Loss) | The before-tax amount, income tax (provision) benefit, and net-of-tax amount related to each component of OCI were as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (in thousands)
Before-tax amount |  |  |  |  |  |  |
Foreign currency translation adjustment | $ | (576 | ) |  | $ | 14,169 |  |  | $ | (18,554 | ) |  | $ | 49,755 |
Foreign currency translation adjustment reclassified into net income | — |  |  | 1,089 |  |  | — |  |  | 1,089 |
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | 712 |  |  | 57 |  |  | 5,216 |  |  | (480 | )
Net hedging (gain) loss reclassified into net income | 175 |  |  | 148 |  |  | (2,198 | ) |  | 785 |
Net defined benefit plan loss reclassified to net income | 399 |  |  | 447 |  |  | 1,228 |  |  | 1,271 |
Total other comprehensive income (loss), before tax | 710 |  |  | 15,910 |  |  | (14,308 | ) |  | 52,420 |
Tax (provision) benefit |  |  |  |  |  |  |
Foreign currency translation adjustment | (102 | ) |  | (328 | ) |  | 16 |  |  | (451 | )
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | (20 | ) |  | (22 | ) |  | (446 | ) |  | 185 |
Net hedging (gain) loss reclassified into net income | 41 |  |  | (57 | ) |  | (9 | ) |  | (303 | )
Net defined benefit plan loss reclassified to net income | (7 | ) |  | (37 | ) |  | (21 | ) |  | (267 | )
Total other comprehensive income (loss) tax benefit | (88 | ) |  | (444 | ) |  | (460 | ) |  | (836 | )
Net-of-tax amount |  |  |  |  |  |  |
Foreign currency translation adjustment | (678 | ) |  | 13,841 |  |  | (18,538 | ) |  | 49,304 |
Foreign currency translation adjustment reclassified into net income | — |  |  | 1,089 |  |  | — |  |  | 1,089 |
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | 692 |  |  | 35 |  |  | 4,770 |  |  | (295 | )
Net hedging (gain) loss reclassified into net income | 216 |  |  | 91 |  |  | (2,207 | ) |  | 482 |
Net defined benefit plan loss reclassified to net income | 392 |  |  | 410 |  |  | 1,207 |  |  | 1,004 |
Total other comprehensive income (loss), net of tax | $ | 622 |  |  | $ | 15,466 |  |  | $ | (14,768 | ) |  | $ | 51,584 |
Schedule of Accumulated Other Comprehensive Income (Loss) | The changes in the components of AOCI, net of tax, were as follows:
| Foreign Currency Translation Adjustments |  | Net Unrealized Gain (Loss) on Derivative Instruments |  | Net Unrealized Gain (Loss) on Nonderivative Instruments |  | Pension Benefit Obligation Adjustments |  | Accumulated Other Comprehensive Income (Loss)
| (in thousands)
Balances at January 1, 2017 | $ | (182,986 | ) |  | $ | 43 |  |  | $ | (14,380 | ) |  | $ | (32,004 | ) |  | $ | (229,327 | )
OCI before reclassifications | 49,304 |  |  | (295 | ) |  | — |  |  | — |  |  | 49,009 |
Amounts reclassified from AOCI | 1,089 |  |  | 482 |  |  | — |  |  | 1,004 |  |  | 2,575 |
Total other comprehensive income (loss) | 50,393 |  |  | 187 |  |  | — |  |  | 1,004 |  |  | 51,584 |
Balances at September 30, 2017 | $ | (132,593 | ) |  | $ | 230 |  |  | $ | (14,380 | ) |  | $ | (31,000 | ) |  | $ | (177,743 | )
Balances at January 1, 2018 | $ | (128,648 | ) |  | $ | 966 |  |  | $ | (14,380 | ) |  | $ | (28,416 | ) |  | $ | (170,478 | )
OCI before reclassifications | (18,538 | ) |  | 4,770 |  |  | — |  |  | — |  |  | (13,768 | )
Amounts reclassified from AOCI | — |  |  | (2,207 | ) |  | — |  |  | 1,207 |  |  | (1,000 | )
Total other comprehensive income (loss) | (18,538 | ) |  | 2,563 |  |  | — |  |  | 1,207 |  |  | (14,768 | )
Balances at September 30, 2018 | $ | (147,186 | ) |  | $ | 3,529 |  |  | $ | (14,380 | ) |  | $ | (27,209 | ) |  | $ | (185,246 | )

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e526-108580 + Details
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