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Retirement Savings Plans	12 Months Ended
Retirement Savings Plans	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]
Retirement Savings Plans	17. Retirement Savings Plans The Company, through its U.S. and U.K. subsidiaries, offers its employees the opportunity to invest in defined contribution plans. For the years ended December 31, 2013, 2012 and 2011, the Company contributed $0.8 million, $0.7 million and $0.7 million, respectively, to the plans.