Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets, net of amortization	$ 15,619	$ 17,997
Financing lease right-of-use assets, net of amortization	12,775	7,896
Total assets	28,394	25,893
Current portion of operating lease liabilities	4,766	5,043
Current portion of financing lease liabilities	4,543	2,788
Total current	9,309	7,831
Operating lease liabilities	11,545	13,596
Financing lease liabilities	7,670	3,760
Total noncurrent	19,215	17,356
Total liabilities	28,524	$ 25,187
Operating lease, right-of-use asset, accumulated amortization	8,700
Finance lease, right-of-use asset, accumulated amortization	$ 7,100