Equity Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015		Sep. 30, 2014
Change In Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance, Foreign Currency Translation Adjustment, Net of Tax	$ (1,812)		$ 16,326		$ 3,808		$ 18,425
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(6,193)		(8,164)		(11,813)		(10,263)
Ending Balance, Foreign Currency Translation Adjustment, Net of Tax	(8,005)		8,162		(8,005)		8,162
Beginning Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(12,029)		(5,001)		(12,494)		(5,103)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	231	[1]	51	[1]	696	[2]	153	[2]
Ending Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(11,798)		(4,950)		(11,798)		(4,950)
Beginning Balance Accumulated Other Comprehensive Income, Net of Tax	(13,841)		11,325		(8,686)		13,322
Other Comprehensive Income (Loss), Net of Tax	(5,962)		(8,113)		(11,117)		(10,110)
Ending Balance Accumulated Other Comprehensive Income, Net of Tax	(19,803)		3,212		(19,803)		3,212
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent	126		29		375		87
Cost of Sales [Member]
Change In Accumulated Other Comprehensive Income [Roll Forward]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	140		31		421		93
Selling, General and Administrative Expenses [Member]
Change In Accumulated Other Comprehensive Income [Roll Forward]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	$ 217		$ 49		$ 650		$ 147

[1] Amounts reclassified from accumulated other comprehensive (loss) income were expensed and included in cost of sales ($140 and $31 for the three months ended September 30, 2015 and 2014, respectively) and selling, general and administrative expenses ($217 and $49 for the three months ended September 30, 2015 and 2014, respectively) in the condensed consolidated statements of income and comprehensive (loss) income. The components in accumulated other comprehensive (loss) income are included in the computation of net periodic pension expense (income) as reported in Note 11.

[2] Amounts reclassified from accumulated other comprehensive (loss) income were expensed and included in cost of sales ($421 and $93 for the nine months ended September 30, 2015 and 2014, respectively) and selling, general and administrative expenses ($650 and $147 for the nine months ended September 30, 2015 and 2014, respectively) in the condensed consolidated statements of income and comprehensive (loss) income. The components in accumulated other comprehensive (loss) income are included in the computation of net periodic pension expense (income) as reported in Note 11.