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Stockholders' Equity - Changes in Accumulated Balances for Each Component of Other Comprehensive Income (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period $ 2,407,782,000 $ 2,633,254,000 $ 2,949,071,000
Other comprehensive (loss) income before reclassifications 78,781,000 (83,811,000) (182,314,000)
Amounts reclassified from accumulated other comprehensive income (loss) 82,462,000 (10,319,000) (44,496,000)
Other Comprehensive Income (Loss), Net of Tax 161,243,000 (94,130,000) (226,810,000)
Balance at end of period 1,257,455,000 2,407,782,000 2,633,254,000
Derivative Instruments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period 17,469,000 15,363,000 30,025,000
Other comprehensive (loss) income before reclassifications (55,377,000) 18,733,000 37,926,000
Amounts reclassified from accumulated other comprehensive income (loss) 16,810,000 (16,627,000) (52,588,000)
Other Comprehensive Income (Loss), Net of Tax (38,567,000) 2,106,000 (14,662,000)
Balance at end of period (21,098,000) 17,469,000 15,363,000
Available-for-Sale Security      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period 3,149,000 0 0
Other comprehensive (loss) income before reclassifications (5,948,000) 3,149,000 0
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0
Other Comprehensive Income (Loss), Net of Tax (5,948,000) 3,149,000 0
Balance at end of period (2,799,000) 3,149,000 0
Defined Benefit Pension Plans      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period (157,704,000) (159,858,000) (161,507,000)
Other comprehensive (loss) income before reclassifications 7,812,000 (4,154,000) (6,443,000)
Amounts reclassified from accumulated other comprehensive income (loss) 6,679,000 6,308,000 8,092,000
Other Comprehensive Income (Loss), Net of Tax 14,491,000 2,154,000 1,649,000
Balance at end of period (143,213,000) (157,704,000) (159,858,000)
Currency Translation Adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period (805,943,000) (704,404,000) (490,607,000)
Other comprehensive (loss) income before reclassifications 132,294,000 (101,539,000) (213,797,000)
Amounts reclassified from accumulated other comprehensive income (loss) 58,973,000 0 0
Other Comprehensive Income (Loss), Net of Tax 191,267,000 (101,539,000) (213,797,000)
Balance at end of period (614,676,000) (805,943,000) (704,404,000)
AOCI Attributable to Parent      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at beginning of period (943,029,000) (848,899,000) (622,089,000)
Other Comprehensive Income (Loss), Net of Tax 161,243,000 (94,130,000) (226,810,000)
Balance at end of period $ (781,786,000) $ (943,029,000) $ (848,899,000)