Fair Value Measurements - Reconciliation of Assets and Liabilities Measured Using Significant Unobservable Inputs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustments	$ 320	$ 250	$ 330	$ (105)
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance at Beginning			6,340
Balance at Ending	6,670		6,670
Level 3 | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance at Beginning			6,340
Fair value adjustments			330
Balance at Ending	$ 6,670		$ 6,670