Stockholders' Equity - Changes in Accumulated Balances for Each Component of Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
AOCI Rollforward
Balance at beginning of period	$ 666,901	$ 1,257,197	$ 2,408,267
Other comprehensive income (loss) before reclassifications	3,072	(93,699)	78,781
Amounts reclassified from accumulated other comprehensive loss	(13,330)	16,259	82,462
Other Comprehensive (Loss) Income, Net of Tax	(10,258)	(77,440)	161,243
Balance at end of period	491,714	666,901	1,257,197
Derivative Instruments
AOCI Rollforward
Balance at beginning of period	11,411	(21,098)	17,469
Other comprehensive income (loss) before reclassifications	17,024	24,082	(55,377)
Amounts reclassified from accumulated other comprehensive loss	(17,394)	8,427	16,810
Other Comprehensive (Loss) Income, Net of Tax	(370)	32,509	(38,567)
Balance at end of period	11,041	11,411	(21,098)
Available-for-Sale Security
AOCI Rollforward
Balance at beginning of period	(6,547)	(2,799)	3,149
Other comprehensive income (loss) before reclassifications	(1,713)	(3,748)	(5,948)
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Other Comprehensive (Loss) Income, Net of Tax	(1,713)	(3,748)	(5,948)
Balance at end of period	(8,260)	(6,547)	(2,799)
Employee Benefit Plans
AOCI Rollforward
Balance at beginning of period	(142,763)	(143,213)	(157,704)
Other comprehensive income (loss) before reclassifications	(31,158)	(7,382)	7,812
Amounts reclassified from accumulated other comprehensive loss	4,064	7,832	6,679
Other Comprehensive (Loss) Income, Net of Tax	(27,094)	450	14,491
Balance at end of period	(169,857)	(142,763)	(143,213)
Currency Translation Adjustments
AOCI Rollforward
Balance at beginning of period	(721,327)	(614,676)	(805,943)
Other comprehensive income (loss) before reclassifications	18,919	(106,651)	132,294
Amounts reclassified from accumulated other comprehensive loss	0	0	58,973
Other Comprehensive (Loss) Income, Net of Tax	18,919	(106,651)	191,267
Balance at end of period	(702,408)	(721,327)	(614,676)
AOCI Attributable to Parent
AOCI Rollforward
Balance at beginning of period	(859,226)	(781,786)	(943,029)
Other Comprehensive (Loss) Income, Net of Tax	(10,258)	(77,440)	161,243
Balance at end of period	$ (869,484)	$ (859,226)	$ (781,786)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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