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Property and Equipment	3 Months Ended
Property and Equipment	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment are net of accumulated depreciation of $264.7 million and $253.4 million at March 31, 2016 and December 31, 2015, respectively. Property and equipment, net, as of March 31, 2016, includes land and a building valued at approximately $2.1 million that are held for sale.