Leases - Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,489	$ 1,677	$ 4,369	$ 3,950
Operating cash flows from finance leases	3	4	11	13
Financing cash flows from finance leases	26	26	78	76
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases	$ 0	$ 0	$ 7,652	$ 15,417
Weighted Average Remaining Lease Term
Operating leases	6 years 11 months 4 days	6 years 9 months 18 days	6 years 11 months 4 days	6 years 9 months 18 days
Finance leases	3 years 11 months 1 day	4 years 11 months 1 day	3 years 11 months 1 day	4 years 11 months 1 day
Weighted Average Discount Rate
Operating leases	6.10%	6.12%	6.10%	6.12%
Finance leases	3.00%	3.00%	3.00%	3.00%