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Debt Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Jun. 24, 2014
Debt Disclosure [Abstract]      
Term loan, weighted average interest rate 1.915% 1.745%  
Term Loan $ 184,875 $ 191,250 $ 255,000
Less: Short-term debt 25,500 25,500  
Long-term debt $ 159,375 $ 165,750