Leases Leases - Supplemental Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 2,188	$ 1,835	$ 4,233	$ 3,638
Cash paid for amounts included in the measurement of operating lease liabilities	2,469	2,020	4,728	3,928
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	$ 625	$ 792	$ 6,647	$ 2,251
Weighted-average remaining lease term — operating leases	5 years 4 months 24 days		5 years 4 months 24 days		5 years 8 months 12 days
Weighted-average discount rate — operating leases	3.80%		3.80%		4.00%