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Stock repurchase program	6 Months Ended
Stock repurchase program	Jun. 30, 2014
Text Block [Abstract]
Stock repurchase program	17. Stock repurchase program On May 8, 2013, the Company announced that its Board of Directors had authorized a share repurchase program in an amount up to $50 million. To date, the Company has made total repurchases in an amount equal to $39.5 million, all of which were made between May and July 2013.