Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 5,810	$ (16,079)
Amount reclassified from accumulated other comprehensive loss	1,035	1,425
Interest Expense	36,936	$ 37,436
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	3,700
Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Liability at Fair Value	(4,616)		$ (9,291)
Fair Value Inputs Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Liability at Fair Value	(4,616)		(9,291)
Interest Rate Cash Flow Hedge Derivative At Fair Value Net	$ (4,616)		(9,291)
Derivative @ 1.053% 265.000M [Member]
Derivative [Line Items]
Derivative, Inception Date	Aug. 01, 2016
Derivative, Maturity Date	Jan. 05, 2022
Derivative, Notional Amount	$ 265,000
Derivative, Description of Variable Rate Basis	1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	1.053%
Interest Rate Cash Flow Hedge Liability at Fair Value			(2,472)
Derivative @ 1.303% 19.678M [Member]
Derivative [Line Items]
Derivative, Inception Date	Apr. 07, 2016
Derivative, Maturity Date	Apr. 01, 2023
Derivative, Notional Amount	$ 19,312
Derivative, Description of Variable Rate Basis	1 Month LIBOR
Derivative, Fixed Interest Rate	1.303%
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (413)		(494)
Derivative @ 1.490% 32.809M [Member]
Derivative [Line Items]
Derivative, Inception Date	Dec. 01, 2016
Derivative, Maturity Date	Nov. 01, 2023
Derivative, Notional Amount	$ 32,220
Derivative, Description of Variable Rate Basis	1 Month LIBOR
Derivative, Fixed Interest Rate	1.49%
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (955)		(1,181)
Derivative @ 1.542% 24.000M [Member]
Derivative [Line Items]
Derivative, Inception Date	Sep. 17, 2019
Derivative, Maturity Date	Mar. 17, 2025
Derivative, Notional Amount	$ 24,000
Derivative, Description of Variable Rate Basis	1 Month LIBOR
Derivative, Fixed Interest Rate	1.542%
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (834)		(1,288)
Derivative @ 2.366% 37.022M [Member]
Derivative [Line Items]
Derivative, Inception Date	Jun. 02, 2017
Derivative, Maturity Date	Jun. 02, 2027
Derivative, Notional Amount	$ 36,449
Derivative, Description of Variable Rate Basis	1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	2.366%
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (2,414)		$ (3,856)