Contingencies - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Commitments And Contingencies [Line Items]
Estimated exposure of guarantees	$ 1,300,000	$ 2,400,000
Guarantees accrued	0	0
Outstanding Letters of Credits	$ 1,400,000	$ 1,400,000
Minimum
Commitments And Contingencies [Line Items]
Term of guarantees	3 years
Maximum
Commitments And Contingencies [Line Items]
Term of guarantees	5 years