Leases - Summary of Lease Costs and Other Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Lease cost
Operating lease cost	$ 7,431
Short-term lease cost	53
Variable lease cost	2,218
Total lease cost	9,702
Other information
Operating cash flows used for operating leases	6,476
Operating lease liabilities arising from obtaining right-of-use assets	$ 2,554
Weighted average remaining lease term	3 years
Weighted average discount rate	9.00%