Equity and Noncontrolling Interest - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Balance at Beginning of Period	$ (121,524)	$ (79,167)	$ (78,170)	$ (80,715)
Other Comprehensive Income (Loss) Before Reclassifications	12,198	(190)	(48,900)	1,246
Amounts Reclassified from AOCI	507	689	24,841	1,326
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	12,705	499	(24,059)	2,572
Related Tax Amounts	(445)	(213)	(7,035)	(738)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	12,260	286	(31,094)	1,834
Accumulated Other Comprehensive Income (Loss), Balance at End of Period	(109,264)	(78,881)	(109,264)	(78,881)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Balance at Beginning of Period	(99,187)	(49,753)	(44,568)	(49,322)
Other Comprehensive Income (Loss) Before Reclassifications	10,550	(543)	(44,069)	(974)
Amounts Reclassified from AOCI	0	0	0	0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	10,550	(543)	(44,069)	(974)
Related Tax Amounts	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	10,550	(543)	(44,069)	(974)
Accumulated Other Comprehensive Income (Loss), Balance at End of Period	(88,637)	(50,296)	(88,637)	(50,296)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Balance at Beginning of Period	(17,576)	(29,845)	(34,533)	(30,551)
Other Comprehensive Income (Loss) Before Reclassifications	(336)	(79)	492	81
Amounts Reclassified from AOCI	600	732	24,966	1,465
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	264	653	25,458	1,546
Related Tax Amounts	(51)	(131)	(8,288)	(318)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	213	522	17,170	1,228
Accumulated Other Comprehensive Income (Loss), Balance at End of Period	(17,363)	(29,323)	(17,363)	(29,323)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Balance at Beginning of Period	(4,301)	0	(320)	0
Other Comprehensive Income (Loss) Before Reclassifications	(144)	0	(5,315)	0
Amounts Reclassified from AOCI	0	0	0	0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(144)	0	(5,315)	0
Related Tax Amounts	33	0	1,223	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(111)	0	(4,092)	0
Accumulated Other Comprehensive Income (Loss), Balance at End of Period	(4,412)	0	(4,412)	0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Balance at Beginning of Period	(460)	431	1,251	(842)
Other Comprehensive Income (Loss) Before Reclassifications	2,128	432	(8)	2,139
Amounts Reclassified from AOCI	(93)	(43)	(125)	(139)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	2,035	389	(133)	2,000
Related Tax Amounts	(427)	(82)	30	(420)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1,608	307	(103)	1,580
Accumulated Other Comprehensive Income (Loss), Balance at End of Period	$ 1,148	$ 738	$ 1,148	$ 738