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Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2012
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions A member of the Company’s Board of Directors is a senior partner of a law firm that provides legal services to the Company. Total disbursements to the law firm relating to these legal services aggregated $0.3 million, $0.5 million and $0.4 million in 2012, 2011 and 2010, respectively.