Equity Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Change In Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance, Foreign Currency Translation Adjustment, Net of Tax	$ 16,326		$ 13,080		$ 18,425		$ 14,207
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(8,164)		4,328		(10,263)		3,201
Ending Balance, Foreign Currency Translation Adjustment, Net of Tax	8,162		17,408		8,162		17,408
Beginning Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(5,001)		(12,140)		(5,103)		(12,566)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	51	[1]	214	[1]	153	[2]	640	[2]
Ending Balance, Pension and Other Postretirement Benefit Plans, Net of Tax	(4,950)		(11,926)		(4,950)		(11,926)
Beginning Balance Accumulated Other Comprehensive Income, Net of Tax	11,325		940		13,322		1,641
Other Comprehensive Income (Loss), Net of Tax	(8,113)		4,542		(10,110)		3,841
Ending Balance Accumulated Other Comprehensive Income, Net of Tax	3,212		5,482		3,212		5,482
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent	29		123		87		371
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	31		133		93		399
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	$ 49		$ 204		$ 147		$ 612

[1] Amounts reclassified from accumulated other comprehensive income were expensed and included in cost of sales ($31 and $133 for the three months ended September 30, 2014 and 2013, respectively) and selling, general and administrative expenses ($49 and $204 for the three months ended September 30, 2014 and 2013, respectively) in the condensed consolidated statements of income and comprehensive income. The components in accumulated other comprehensive income are included in the computation of net periodic pension (income) cost as reported in Note 11.

[2] Amounts reclassified from accumulated other comprehensive income were expensed and included in cost of sales ($93 and $399 for the nine months ended September 30, 2014 and 2013, respectively) and selling, general and administrative expenses ($147 and $612 for the nine months ended September 30, 2014 and 2013, respectively) in the condensed consolidated statements of income and comprehensive income. The components in accumulated other comprehensive income are included in the computation of net periodic pension (income) cost as reported in Note 11.