Summary Of Significant Accounting Policies Summary of Siginificant Accounting Policies (Schedule of Change in Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 159,733		$ 135,639		$ 178,097
Current period other comprehensive loss before reclassifications	18,956		24,094		(42,458)
Amounts reclassified from accumulated other comprehensive loss	0		0		0
Ending balance	178,689		159,733		135,639
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	160,661		134,976		176,982
Current period other comprehensive loss before reclassifications	18,185		25,685		(42,006)
Amounts reclassified from accumulated other comprehensive loss	0		0		0
Ending balance	178,846		160,661		134,976
Pensions
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(928)	[1]	663	[1]	1,115	[1]
Current period other comprehensive loss before reclassifications	771	[1]	(1,591)	[1]	(452)	[1]
Amounts reclassified from accumulated other comprehensive loss	0	[1]	0	[1]	0	[1]
Ending balance	$ (157)	[1]	$ (928)	[1]	$ 663	[1]

[1] This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost (refer to Note 13).