Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The Predecessor’s income tax expense consists of the following:

	Year Ended December 31,
	2017		2016
	(In thousands)
Current:
Federal	$	15,571	$	21,272
State	2,047		2,797
	17,618		24,069
Deferred:
Federal	4,631		772
State	609		16
	5,240		788
Total income tax expense	$	22,858	$	24,857

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of income taxes calculated at the U.S. federal statutory rate to the Predecessor’s effective tax rate for the years presented is as follows:

	Year Ended December 31,
	2017					2016
	(%)		(In thousands)			(%)		(In thousands)
U.S. federal statutory rate	35.00	%	$	33,392		35.00	%	$	22,745
Earnings not subject to tax subsequent to the initial public offering	(12.83	)%	(12,239		)	—	%	—
State income taxes, net of federal income tax benefit	1.81	%	1,727			2.90	%	1,882
Other	(0.02	)%	(22		)	0.35	%	230
Annual effective tax rate	23.96	%	$	22,858		38.25	%	$	24,857