Leases - Schedule of Leases on Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Operating lease assets	$ 3,648	$ 4,068
Financing lease assets	$ 2,485	$ 2,847
Finance lease, Statement of financial position [Extensible List]	us-gaap:PropertyPlantAndEquipmentMember	us-gaap:PropertyPlantAndEquipmentMember
Total leased assets	$ 6,133	$ 6,915
Current
Operating	1,006	1,167
Financing	362	344
Non-current
Operating	2,642	2,901
Financing	4,032	4,221
Total lease liabilities	$ 8,042	$ 8,633