Debt - Summary of Amounts Outstanding under the Credit Facility (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Line of Credit Facility [Line Items]
Debt, gross		$ 2,144,652
Debt Issuance Costs, Line of Credit Arrangements, Net		4,806	$ 6,654
Tranche A-1 and A-2 Loans [Member]
Line of Credit Facility [Line Items]
Debt, gross		300,000	50,000
Unamortized deferred financing costs, net		(2,871)	(3,463)
Debt, net		$ 297,129	46,537
Line of credit | Revolving credit facility
Line of Credit Facility [Line Items]
Interest Rate (1)		3.60%
Debt, net		$ 0	115,751
Letters of Credit Outstanding, Amount		$ 5,700	5,700
Line of Credit Facility, Commitment Fee Percentage		0.15%
Line of credit | Tranche A-1 Term Loan
Line of Credit Facility [Line Items]
Interest Rate (1)		3.32%
Debt, gross		$ 100,000	50,000
Line of credit | Tranche A-2 Term Loan Credit Facility [Member]
Line of Credit Facility [Line Items]
Interest Rate (1)		4.05%
Debt, gross		$ 200,000	$ 0
Revolving credit facility
Line of Credit Facility [Line Items]
Repayments of Secured Debt	$ 115,000