Derivatives and Hedging Activities (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	May 05, 2020	Jul. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative instruments and hedging activities disclosures
Notional Amount	$ 75,000
Derivative, Term of Contract	5 years
Term	5 years
Unrealized (loss) gain recorded in other comprehensive income			$ (4,369)	$ (679)	$ (21,397)	$ (5,145)
Interest expense			10,586	$ 10,311	21,769	$ 19,809
Interest Rate Swap | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			700,000		700,000		$ 325,000
Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | Forecast
Derivative instruments and hedging activities disclosures
Amount estimated to be reclassified as an increase to interest expense		$ 7,400
Interest Rate Swap | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (23,147)		$ (23,147)		(2,656)
Interest rate swap expiring 5/20/2020 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount							75,000
Strike Rate			1.43%		1.43%
Interest rate swap expiring 5/20/2020 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value							67
Interest rate swap expiring 4/5/2023 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 75,000		$ 75,000		75,000
Strike Rate			2.72%		2.72%
Interest rate swap expiring 4/5/2023 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (5,411)		$ (5,411)		(2,819)
Interest rate swap expiring 4/1/2025 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 100,000		$ 100,000		100,000
Strike Rate			1.59%		1.59%
Interest rate swap expiring 4/1/2025 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (6,598)		$ (6,598)		55
Second interest rate swap expiring 4/1/2025 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 75,000		$ 75,000		75,000
Strike Rate			1.59%		1.59%
Second interest rate swap expiring 4/1/2025 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (4,950)		$ (4,950)		$ 41
Interest rate swap expiring 4/19/2022 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 200,000		$ 200,000
Strike Rate			0.56%		0.56%
Interest rate swap expiring 4/19/2022 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (1,553)		$ (1,553)
Interest rate swap expiring 10/5/2023 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 75,000		$ 75,000
Strike Rate			0.61%		0.61%
Interest rate swap expiring 10/5/2023 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (1,165)		$ (1,165)
Interest rate swap expiring 10/12024 | Designated as Hedging Instrument
Derivative instruments and hedging activities disclosures
Notional Amount			$ 175,000		$ 175,000
Strike Rate			0.64%		0.64%
Interest rate swap expiring 10/12024 | Designated as Hedging Instrument | Level 2
Derivative instruments and hedging activities disclosures
Fair Value			$ (3,470)		$ (3,470)