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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2017
Equity [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss), Net of Related Deferred Income Taxes | As of March 31, 2017 and December 31, 2016, the components of accumulated other comprehensive income (loss), net of related deferred income taxes, are as follows (in thousands):
| March 31, 2017 |  | December 31, 2016
Defined benefit pension and other post retirement benefit plans | $ | (103,520 | ) |  | $ | (105,036 | )
Unrealized loss on foreign currency forward contracts, interest rate swaps, and available-for-sale securities | (7,973 | ) |  | (15,499 | )
Unrealized foreign currency translation gain | (3,145 | ) |  | (2,264 | )
Total accumulated other comprehensive loss, net of tax | $ | (114,638 | ) |  | $ | (122,799 | )

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e526-108580 + Details
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