Derivative Financial Instruments - Additional Information (Details) - USD ($)	Jan. 28, 2020	Jan. 10, 2020	Dec. 31, 2019	May 15, 2019	Dec. 31, 2018	Dec. 11, 2018	Jul. 16, 2018	Mar. 07, 2018	Nov. 28, 2017	Sep. 18, 2017	Jun. 23, 2017	Feb. 07, 2017	Jun. 17, 2016	Feb. 25, 2016	Oct. 26, 2015
Derivative [Line Items]
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months			$ (1,400,000)
Derivative, notional amount			496,642,000		$ 513,208,000
LIBOR | Interest rate caps
Derivative [Line Items]
Derivative, notional amount				$ 100,000,000		$ 50,000,000	$ 50,000,000	$ 50,000,000	$ 50,000,000	$ 50,000,000	$ 50,000,000	$ 50,000,000	$ 70,000,000	$ 75,000,000	$ 75,000,000
Strike rate				2.50%		2.75%	2.50%	2.25%	1.50%	1.50%	1.50%	1.50%	1.00%	1.50%	1.25%
Premium paid			$ 2,370,000	$ 288,000		$ 210,000	$ 319,000	$ 310,000	$ 359,000	$ 199,000	$ 154,000	$ 187,000	$ 150,000	$ 57,000	$ 137,000
Subsequent Event | LIBOR | Interest rate caps
Derivative [Line Items]
Derivative, notional amount	$ 50,000,000.0	$ 50,000,000.0
Strike rate	1.75%	1.75%
Premium paid	$ 100,000	$ 100,000