Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Derivative Instruments - Schedule of Fair Value of Interest Rate Swaps (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Mar. 29, 2018	Jul. 22, 2016	Sep. 15, 2015
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 400,000
Asset Derivatives	7,587		$ 10,638
Liability Derivatives	1,917		799
Derivative Assets (Liabilities), at Fair Value, Net	5,670		9,839
Unrealized (loss) gain on interest rate hedges	(4,169)	$ 4,065
2015 Term Loan \| Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount						$ 150,000
2015 Term Loan \| Interest Rate Swap \| Prepaid Expenses and Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	1,779		2,720
2018 Term Loan A \| Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				$ 150,000	$ 150,000
2018 Term Loan A \| Interest Rate Swap \| Prepaid Expenses and Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	5,808		7,918
2018 Term Loan B
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				100,000
2018 Term Loan B \| Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				$ 100,000
2018 Term Loan B \| Interest Rate Swap \| Accounts Payable and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ (1,917)		$ (799)