Income Taxes - Summary of Company's Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Stock compensation expense	$ 4,926	$ 4,967
Operating lease liabilities	20,227
Other	892	3,569
Total deferred tax assets	26,045	8,536
Valuation allowance			$ (4,648)	$ (7,235)
Net deferred tax assets	26,045	8,536
Deferred tax liabilities:
Depreciation and amortization	(4,085)	(1,847)
Capitalized software development costs	(5,306)	(3,776)
Goodwill and intangible assets	(1,120)	(898)
Operating lease right-of-use assets	(16,515)
Deferred tax (liability), net	$ (981)
Deferred tax asset, net		$ 2,015