Leases - Summary of Remaining Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Operating Leases
2021	$ 2,197
2022	1,773
2023	467
2024	161
2025	195
Thereafter	524
Total undiscounted value of lease liabilities	5,317
Less: Interest	(279)
Present value of lease liabilities	5,038		$ 20,500
Current portion of lease liabilities	2,092	$ 1,875
Long-term portion of lease liabilities	2,946	4,084
Total lease liabilities	5,038		$ 20,500
Finance Leases
2021	1,414
2022	3,442
2023	1,471
2024	1,501
2025	1,531
Thereafter	24,175
Total undiscounted value of lease liabilities	33,534
Less: Interest	(10,686)
Present value of lease liabilities	22,848
Current portion of finance lease liability	510	323
Long-term portion of finance lease liability	22,338	$ 20,648
Total lease liabilities	$ 22,848