Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Allocation of Federal and State Income Taxes between Current and Deferred Portions

Allocation of federal and state income taxes between current and deferred portions is as follows:

	December 31,
	2017		2016		2015
Current	$	14,629	$	12,476	$	1,321
Deferred		6,458		9,257		1,647
Total	$	21,087	$	21,733	$	2,968

Schedule of Reconciliation of Income Taxes Computed at the United States Federal Statutory Tax Rates to the Provision for Income Taxes

The reconciliation of income taxes computed at the United States federal statutory tax rates to the provision for income taxes is as follows, for the periods presented:

	December 31,
	2017			2016			2015
Federal taxes calculated at statutory rate	$	25,720		$	5,061		$	—
Increase (decrease) resulting from:
State taxes, net of federal benefit		3,053			3,664			2,956
Revaluation of net deferred tax liability as a result of the Tax    Cuts and Jobs Act		(5,894	)		—			—
Conversion as of September 16, 2016 to C Corporation		—			13,181			—
Benefit of equity based compensation		(310	)		(786	)		—
Permanent items		(1,402	)		(633	)		12
Other		(80	)		1,246			—
Income tax expense, as reported	$	21,087		$	21,733		$	2,968

Schedule of Net Deferred Tax liability

The components of the net deferred tax liability at December 31, 2017 and 2016, are as follows:

	For the year ended
	December 31,
	2017			2016
Deferred tax assets:
Allowance for loan losses	$	6,264		$	8,516
Amortization of core deposit intangible		759			996
Compensation related		6,158			7,552
Unrealized loss on securities		988			2,462
Other		3,599			2,430
Subtotal		17,768			21,956
Deferred tax liabilities:
FHLB stock dividends		(550	)		(827	)
Depreciation		(4,115	)		(6,548	)
Mortgage servicing rights		(19,830	)		(12,558	)
Other		(5,131	)		(6,203	)
Subtotal		(29,626	)		(26,136	)
Net deferred tax liability	$	(11,858	)	$	(4,180	)