Translation Adjustments (Schedule of Effect of Translation on Cash Flow) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Intercompany Foreign Currency Balance [Line Items]
Change in cumulative translation adjustments	$ 18,287	$ (13,070)	$ (10,208)
Effect of exchange rate changes on cash and cash equivalents	(81)	(3,373)	(9,285)
Other Noncurrent Liabilities [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	1,352	(1,209)	877
Deferred Taxes [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	(7,895)	1,204	2,562
Accounts Receivable [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	(1,119)	4,284	2,066
Inventories [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	(779)	2,756	(218)
Property, Plant and Equipment, Net [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	(7,859)	2,789	(8,626)
Goodwill and Intangibles [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	(1,053)	2,449	4,665
Other Translation Adjustments [Member]
Intercompany Foreign Currency Balance [Line Items]
Effect of exchange rate changes on cash and cash equivalents	$ (1,015)	$ (2,576)	$ (403)