Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($) $ in Millions						12 Months Ended
	Feb. 20, 2020	Aug. 08, 2018	Aug. 31, 2017	Sep. 30, 2016	[1]	Dec. 31, 2020
Derivative [Line Items]
Estimate of time to transfer of realized losses from AOCI into earnings						12 months
Net amount of realized losses from AOCI into earnings						$ 3.0
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Aggregate notional amount	$ 100.0	$ 50.0	$ 25.0	$ 100.0
Derivative, fixed interest rate	1.294%	2.854%	1.8475%
Beginning dates of effected cash flows	Feb. 28, 2020	Aug. 31, 2018	Aug. 31, 2018	Jan. 31, 2018
Ending dates of effected cash flows	Feb. 28, 2025	Aug. 31, 2023	Aug. 31, 2023	Jan. 31, 2023

[1] On December 1, 2016, the Company sold the interest rate hedge agreement.  The fair value of the interest rate hedge, as of the date of the sale, was recorded in other comprehensive income, net of tax.  The gain from the sale will be recognized into earnings when earnings are impacted by the cash flows of the previously hedged variable interest rate.