Derivative Financial Instruments Derivative Financial Instruments - Schedule of LIBOR interest rate caps (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 29, 2020	Feb. 28, 2020	Jan. 28, 2020	Jan. 10, 2020	Dec. 31, 2019	May 15, 2019	Dec. 11, 2018	Jul. 16, 2018
Derivative [Line Items]
Notional Amount	$ 840,948					$ 496,642
Interest Rate Caps | LIBOR
Derivative [Line Items]
Notional Amount	500,000
Premium Paid	1,309
Not designated as accounting hedges
Derivative [Line Items]
Notional Amount	250,000					350,000
Not designated as accounting hedges | Interest Rate Caps
Derivative [Line Items]
Notional Amount	200,000					250,000
Not designated as accounting hedges | Interest Rate Caps | LIBOR
Derivative [Line Items]
Notional Amount							$ 100,000	$ 50,000	$ 50,000
Strike Rate							2.50%	2.75%	2.50%
Premium Paid							$ 288	$ 210	$ 319
Designated as accounting hedge | Interest Rate Caps
Derivative [Line Items]
Notional Amount	$ 300,000					$ 0
Designated as accounting hedge | Interest Rate Caps | LIBOR
Derivative [Line Items]
Notional Amount		$ 100,000	$ 100,000	$ 50,000	$ 50,000
Strike Rate		0.50%	1.50%	1.75%	1.75%
Premium Paid		$ 232	$ 111	$ 62	$ 87