Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Schedule of Fair Value of Interest Rate Swaps (Details)

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Derivative Instruments - Schedule of Fair Value of Interest Rate Swaps (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Mar. 29, 2018
Dec. 31, 2017
Sep. 15, 2015
Interest Rate Swap [Member]        
Derivatives, Fair Value [Line Items]        
Aggregate Notional Amount $ 400,000      
Asset Derivatives 17,181   $ 9,419  
Interest Rate Swap [Member] | Prepaid Expenses and Other Assets [Member]        
Derivatives, Fair Value [Line Items]        
Asset Derivatives 17,181   9,419  
2015 Term Loan [Member] | Interest Rate Swap [Member]        
Derivatives, Fair Value [Line Items]        
Aggregate Notional Amount       $ 150,000
2015 Term Loan [Member] | Interest Rate Swap [Member] | Prepaid Expenses and Other Assets [Member]        
Derivatives, Fair Value [Line Items]        
Asset Derivatives 4,392   1,987  
2018 Term Loan A [Member] | Interest Rate Swap [Member]        
Derivatives, Fair Value [Line Items]        
Aggregate Notional Amount   $ 150,000    
2018 Term Loan A [Member] | Interest Rate Swap [Member] | Prepaid Expenses and Other Assets [Member]        
Derivatives, Fair Value [Line Items]        
Asset Derivatives 11,484   $ 7,432  
2018 Term Loan B [Member]        
Derivatives, Fair Value [Line Items]        
Aggregate Notional Amount   100,000    
2018 Term Loan B [Member] | Interest Rate Swap [Member]        
Derivatives, Fair Value [Line Items]        
Aggregate Notional Amount   $ 100,000    
2018 Term Loan B [Member] | Interest Rate Swap [Member] | Prepaid Expenses and Other Assets [Member]        
Derivatives, Fair Value [Line Items]        
Liability Derivatives $ 1,305