DEBT - Schedule of Maturities for Outstanding Debt (Details) $ in Thousands	Sep. 09, 2019 extension_option	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
October 1 through December 31, 2019		$ 869
2020		3,545
2021		18,573
2022		253,185
2023		753,282
Thereafter		1,580,316
Total Debt		2,609,770
Premium, net		13,188
Deferred financing costs, net		(19,847)
Total Debt, Net		2,603,111
Prior Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Number of extension options | extension_option	2
Extension period	6 months
Fifth Amended and Restated Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Extension period	6 months
Secured Indebtedness
Debt Instrument [Line Items]
October 1 through December 31, 2019		869
2020		3,545
2021		18,573
2022		3,185
2023		3,282
Thereafter		85,916
Total Debt		115,370
Premium, net		0
Deferred financing costs, net		(1,726)	$ (1,800)
Total Debt, Net		113,644
Revolving Credit Facility
Debt Instrument [Line Items]
October 1 through December 31, 2019		0
2020		0
2021		0
2022		0
2023		200,000
Thereafter		0
Total Debt		200,000
Premium, net		0
Deferred financing costs, net		0
Total Debt, Net		200,000
Term Loans
Debt Instrument [Line Items]
October 1 through December 31, 2019		0
2020		0
2021		0
2022		250,000
2023		350,000
Thereafter		594,400
Total Debt		1,194,400
Premium, net		0
Deferred financing costs, net		(11,417)
Total Debt, Net		1,182,983
Senior Notes
Debt Instrument [Line Items]
October 1 through December 31, 2019		0
2020		0
2021		0
2022		0
2023		200,000
Thereafter		900,000
Total Debt		1,100,000
Premium, net		13,188	14,500
Deferred financing costs, net		(6,704)	$ (7,100)
Total Debt, Net		$ 1,106,484