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Derivative Instruments - Additional information (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) agreement	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Interest rate contract
Derivative [Line Items]
Borrowings at variable interest rates	$ 822,800,000		$ 783,100,000
Number of interest rate swap agreements \| agreement	6
Number of interest rate swaps entered into \| agreement	4
Derivative, notional amount	$ 100,000,000.0
Net fair value of swap liability	2,500,000		$ (4,000,000.0)
Fair value of interest rate swap, asset	4,900,000
Fair value of interest rate swap, liability	2,300,000
Interest expense for derivative instruments	$ 900,000	$ 36,000.0
2021 Swap Agreements, Group 1
Derivative [Line Items]
Number of interest rate swap agreements \| agreement	2
Remaining maturity term	34 months
2021 Swap Agreements, Group 2
Derivative [Line Items]
Number of interest rate swap agreements \| agreement	2
Remaining maturity term	58 months
2019 Swap Ageement
Derivative [Line Items]
Number of interest rate swap agreements \| agreement	1
Derivative, notional amount	$ 100,000,000.0
Remaining maturity term	39 months
2016 Swap Agreement
Derivative [Line Items]
Number of interest rate swap agreements \| agreement	1
Derivative, notional amount	$ 100,000,000.0
Remaining maturity term	1 month