Shareholders' Equity Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 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	$ (130)	$ (383)	(499)	$ (478)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(253)	(264)	(508)	(522)
Total other comprehensive income (loss), net of tax	14,472	(7,996)	(46,228)	(11,110)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(493)	(118)	(997)	(215)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(182,742)		(182,742)
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			(47,734)	(11,415)
Amounts reclassified from AOCI			1,506	305
Total other comprehensive income (loss), net of tax			(46,228)	(11,110)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(182,742)	(32,832)	(182,742)	(32,832)
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			(47,234)	(11,369)
Amounts reclassified from AOCI			0	0
Total other comprehensive income (loss), net of tax			(47,234)	(11,369)
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(133,768)	(7,570)	(133,768)	(7,570)
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				(478)
Amounts reclassified from AOCI				522
Total other comprehensive income (loss), net of tax			9	44
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	(759)	(1,212)	(759)	(1,212)
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)	(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)	432
Amounts reclassified from AOCI			998	(217)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(997)			215
Accumulated Other Comprehensive Income (Loss), Net of Tax, End of Period	$ (33,835)	$ (9,670)	$ (33,835)	$ (9,670)