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Borrowings - Long-Term Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Oct. 09, 2019	Dec. 31, 2018	Jun. 16, 2017
Line of Credit Facility [Line Items]
Outstanding Principal	$ 1,957,225
Outstanding Borrowings, net	$ 1,917,866		$ 907,037
SBI Bonds
Line of Credit Facility [Line Items]
Interest Rate	5.00%		5.00%
Outstanding Principal	$ 32,225		$ 31,908
Discount	0		0
Deferred Debt Issuance Cost	(51)		(24)
Outstanding Borrowings, net	32,174		31,884
Total Long-term borrowings
Line of Credit Facility [Line Items]
Outstanding Principal	1,957,225		931,908
Discount	(6,795)		(332)
Deferred Debt Issuance Cost	(32,564)		(24,539)
Outstanding Borrowings, net	$ 1,917,866		$ 907,037
Senior Secured Second Lien Notes
Line of Credit Facility [Line Items]
Interest Rate		6.75%		6.75%
Senior Secured Credit Facility
Line of Credit Facility [Line Items]
Interest Rate	5.20%		5.55%
Outstanding Principal	$ 1,925,000		$ 400,000
Discount	(6,795)		(332)
Deferred Debt Issuance Cost	(32,513)		(6,704)
Outstanding Borrowings, net	$ 1,885,692		$ 392,964
Senior Secured Credit Facility \| Senior Secured Second Lien Notes
Line of Credit Facility [Line Items]
Interest Rate			6.75%
Outstanding Principal			$ 500,000
Discount			0
Deferred Debt Issuance Cost			(17,811)
Outstanding Borrowings, net			$ 482,189