Shareholders' Equity Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	$ (136,514)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(369)	(95)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(255)	(258)
Total other comprehensive income (loss), net of tax	(60,700)	(3,114)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(504)	(97)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(197,214)
Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	(136,514)	(21,722)
OCI before reclassifications	(61,460)	(3,471)
Amounts reclassified from AOCI	760	357
Total other comprehensive income (loss), net of tax	(60,700)	(3,114)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(197,214)	(24,836)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	(86,534)	3,799
OCI before reclassifications	(61,090)	(3,374)
Amounts reclassified from AOCI	0	0
Total other comprehensive income (loss), net of tax	(61,090)	(3,374)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(147,624)	425
Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	(768)	(1,256)
OCI before reclassifications		(95)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(369)
Amounts reclassified from AOCI		258
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(255)
Total other comprehensive income (loss), net of tax	(114)	163
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(882)	(1,093)
Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Nonderivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	(14,380)	(14,380)
OCI before reclassifications	0	0
Amounts reclassified from AOCI	0	0
Total other comprehensive income (loss), net of tax	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(14,380)	(14,380)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning of Period	(34,832)	(9,885)
OCI before reclassifications	(1)	(2)
Amounts reclassified from AOCI	505	99
Total other comprehensive income (loss), net of tax		97
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(504)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	$ (34,328)	$ (9,788)