v3.8.0.1

Income Taxes - Summary of Income Tax Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal	$ 24,421	$ 17,139	$ 7,918
State	1,411	1,098	546
Deferred:
Federal	(13,289)	(905)	16,486
State	316	(357)	(171)
Total Income Tax Expense	$ 12,859	$ 16,975	$ 24,779

X

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Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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