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Stockholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
Jan. 07, 2016
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Stockholders' Equity Note [Abstract]        
Aggregate number of shares repurchased during the period   3,100,000    
Repurchase of common stock, Shares 3,013,531      
Share Price $ 47.50      
payments for repurchase of common stock excluding transaction costs $ 143,100      
Transaction Costs Related to Tender Offer $ 1,100      
Long-term debt   $ 104,400   $ 0
Shares repurchased under the program (in shares)   0    
Shares withheld for tax withholding obligations for the vesting of restricted stock awards (in shares)   100,266    
Authorized to repurchased additional shares under repurchase program (in shares)   524,332    
Dividends declared per share of common stock (in dollars per share)   $ 0.22 $ 0.19  
Payments of Dividends   $ 4,652 $ 4,844