Amounts Included in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ (165,624)	$ (38,119)	$ (109,913)
Other comprehensive income (loss) before reclassifications	(46,923)	(130,291)	61,091
Amounts reclassified from accumulated other comprehensive loss	3,741	2,786	10,703
Other comprehensive income (loss)	(43,182)	(127,505)	71,794
Ending Balance	(208,806)	(165,624)	(38,119)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(89,252)	(38,921)	(105,675)
Other comprehensive income (loss) before reclassifications	2,851	(49,602)	59,648
Amounts reclassified from accumulated other comprehensive loss	2,121	(729)	7,106
Other comprehensive income (loss)	4,972	(50,331)	66,754
Ending Balance	(84,280)	(89,252)	(38,921)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(1,198)	(3,790)	(7,727)
Other comprehensive income (loss) before reclassifications	(1,410)	(923)	340
Amounts reclassified from accumulated other comprehensive loss	1,620	3,515	3,597
Other comprehensive income (loss)	210	2,592	3,937
Ending Balance	(988)	(1,198)	(3,790)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(75,174)	4,592	3,489
Other comprehensive income (loss) before reclassifications	(48,364)	(79,766)	1,103
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Other comprehensive income (loss)	(48,364)	(79,766)	1,103
Ending Balance	$ (123,538)	$ (75,174)	$ 4,592