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Leases - Lease Cost (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Leases [Abstract]    
Operating lease cost $ 685,000 $ 882,000
Short-term lease cost 0 6,000
Variable lease cost 221,000 281,000
Sublease income (86,000) (84,000)
Total lease cost 820,000 1,085,000
Right-of-use assets obtained in exchange for lease obligations—operating leases 0 1,020,000
Cash paid for amounts included in the measurement of lease liabilities $ 938,000 $ 1,099,000