Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Effective Tax Rate and the Federal Statutory Tax Rate (Detail)

v3.10.0.1
Income Taxes - Reconciliation of Effective Tax Rate and the Federal Statutory Tax Rate (Detail)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Federal statutory rate (as a percent) 21.00% 34.00% 34.00%
State income taxes, net of federal income tax benefit (as a percent) 11.01% (4.96%) 3.43%
Non-deductible expenses (as a percent) 3.80% (17.57%) (1.88%)
Compensation expense (as a percent) (12.52%) (25.95%) (13.37%)
Transaction expenses (as a percent) 7.09% 0.00% 0.00%
Deferred revaluation for Tax Cuts and Jobs Act (as a percent) 0.00% 116.24% 0.00%
Adjustments due to adoption of accounting standards (as a percent) (13.84%) 0.00% 0.00%
Foreign tax rate differential (as a percent) 7.20% (12.99%) 0.00%
Other, net (as a percent) (1.21%) (3.72%) 0.73%
Valuation allowance (as a percent) 8.44% 0.00% 0.00%
Effective tax rate (as a percent) 30.97% 85.05% 22.91%