Leases - Additional Information (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($) lease	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 27,180	$ 27,180	$ 26,552	$ 27,372
Operating lease liabilities	$ 30,457	30,457		29,959
Operating Lease Cost (Cost resulting from lease payments)		$ 6,253	$ 5,857
Existence of option to extend leases		true
Existence of option to terminate leases		true
Probability that lease options will be exercised	90.00%	90.00%
Number of operating leases signed but not yet commenced | lease		0
Impact of ASC 326 Adoption | ASU 2016-02 Leases (Topic 842)
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 27,200	$ 27,200		27,400
Operating lease liabilities	30,500	$ 30,500		$ 30,000
One-time Adjustment | ASU 2016-02 Leases (Topic 842)
Lessee, Lease, Description [Line Items]
Operating Lease Cost (Cost resulting from lease payments)	$ 1,700