Debt Obligations, net - Future Scheduled Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
2020 (remaining nine months)	$ 0
2021	158,358
2022	1,035,124
2023	491,875
2024	775,000
Thereafter	1,168,227
Total principal maturities	3,628,584	$ 3,436,038
Unamortized discounts and deferred financing costs, net	(45,224)	(48,958)
Debt obligations, net	3,583,360	3,387,080
Unsecured Debt
Debt Instrument [Line Items]
2020 (remaining nine months)	0
2021	0
2022	687,500
2023	0
2024	775,000
Thereafter	650,000
Total principal maturities	2,112,500
Unamortized discounts and deferred financing costs, net	(37,915)
Debt obligations, net	2,074,585
Secured Debt
Debt Instrument [Line Items]
2020 (remaining nine months)	0
2021	158,358
2022	347,624
2023	491,875
2024	0
Thereafter	518,227
Total principal maturities	1,516,084	$ 1,212,993
Unamortized discounts and deferred financing costs, net	(7,309)
Debt obligations, net	$ 1,508,775

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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