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Long-Term Debt (Narrative 2016 Bridge Term Loans) (Details) - 2016 Bridge Term Loan - USD ($)
Feb. 19, 2016
Feb. 02, 2017
Aug. 05, 2016
Feb. 04, 2016
Eurodollar        
Short-term Debt [Line Items]        
Debt instrument, variable rate   5.25% 5.00% 4.75%
Bridge Loan        
Short-term Debt [Line Items]        
Debt instrument, face amount       $ 80,000,000.0
Debt issuance costs expensed $ 1,900,000      
Minimum | Base Rate        
Short-term Debt [Line Items]        
Debt instrument, stated interest rate   4.25% 4.00% 3.75%