Income Taxes (Pre-Tax Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Domestic	$ 6,604	$ 12,043	$ 13,694
Foreign	71,425	61,452	45,960
Total	$ 78,029	$ 73,495	$ 59,654