Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Tax Reconciliation (Details)

v3.10.0.1
INCOME TAXES - Tax Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Tax at federal statutory rate $ 47,275 $ 5,510 $ (28,392)
State taxes, net of federal benefit 1,874 176 (216)
Non-deductible expenses 2,423 1,582 498
Stock-based compensation (426) (655) 0
Valuation allowance (1,151) 273 879
Effect of change in enacted Tax Act 0 (3,448) 0
Other 1,260 (310) (741)
Income tax expense (benefit) $ 51,255 $ 3,128 $ (27,972)