INCOME TAXES - Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 28,150	$ 26,850	$ 45,726
State	6,959	7,575	7,062
Total current expense	35,109	34,425	52,788
Deferred
Federal	17,484	13,964	25,055
State	4,528	3,519	2,297
Revaluation of deferred tax liabilities, net			(58,313)
Total deferred expense (benefit)	22,012	17,483	(30,961)
Income tax expense	57,121	51,908	21,827
Excess tax benefit recognized	4,632	$ 6,848	$ 9,545
Valuation allowance percent, compensation agreement deferred tax assets		100.00%
Charge to deferred tax expense for valuation allowance on compensation agreements		$ 2,800
Increase in effective tax rate due to valuation allowance		1.30%
Decrease in deferred tax asset related to vested performance awards	1,800
Reduction in deferred tax asset valuation allowance on vested performance awards	$ 1,800