Income Taxes (Components Of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Federal	$ 4,356	$ 1,008	$ (1,369)
State	423	98	(133)
Foreign	4,195	2,633	(60)
Current income tax expense (benefit), total	8,974	3,739	(1,562)
Federal	(400)	150	1,199
State	(40)	15	116
Foreign	(206)	(757)	671
Deferred Income Tax Expense (Benefit), Total	(646)	(592)	1,986
Income tax expense (benefit)	$ 8,328	$ 3,147	$ 424