Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance -	$ (537,341)	$ (379,141)
Other comprehensive (loss) income before reclassifications	(95,021)	(176,294)
Amounts reclassified from AOCL	9,026	18,094
Other comprehensive loss	(85,995)	(158,200)	$ (158,846)
Balance -	(623,336)	(537,341)	(379,141)
Accumulated Other Comprehensive Income (Loss), accumulated Net Gain (Loss) from Net investment hedge, Net of Tax	5,600	4,200
Net of tax	(9,026)	(18,094)
Losses expected to be recognized in next twelve months, net	100
Foreign Currency Translation Items
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance -	(413,422)	(238,533)
Other comprehensive (loss) income before reclassifications	(72,146)	(174,889)
Amounts reclassified from AOCL	0	0
Other comprehensive loss	(72,146)	(174,889)
Balance -	(485,568)	(413,422)	(238,533)
Net of tax	0	0
Pension and other post-retirement effects
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance -	(120,461)	(135,398)
Other comprehensive (loss) income before reclassifications	(23,939)	4,977
Amounts reclassified from AOCL	7,870	9,960
Other comprehensive loss	(16,069)	14,937
Balance -	(136,530)	(120,461)	(135,398)
Tax benefit	3,243	4,816
Amount of settlement of reclassification adjustment from accumulated other comprehensive income (loss)	(871)	(570)
Net of tax	(7,870)	(9,960)
Cash flow hedging activity
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance -	(3,458)	(5,210)
Other comprehensive (loss) income before reclassifications	1,064	(6,382)
Amounts reclassified from AOCL	1,156	8,134
Other comprehensive loss	2,220	1,752
Balance -	(1,238)	(3,458)	(5,210)
Tax benefit	375	3,113
Net of tax	(1,156)	(8,134)
Noncontrolling Interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive loss	710	1,437	83
Foreign currency translation adjustments, attributable to noncontrolling interest	3,400	2,700	$ 1,300
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Reclassification from AOCI, before tax	(9,750)	(13,587)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Reclassification from AOCI, before tax	(492)	(619)
Other | Cash flow hedging activity
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Reclassification from AOCI, before tax	0	(3,327)
Sales [Member] | Cash flow hedging activity
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Reclassification from AOCI, before tax	$ (1,531)	$ (7,920)