Income Taxes (Consolidated Income from Continuing Operations Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
U.S. operations	$ 73,625	$ 68,412	$ 59,881
Foreign operations	60,282	69,268	45,010
Income before income tax	$ 133,907	$ 137,680	$ 104,891