Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Information with Respect to Stock-based Compensation

A summary of information with respect to stock-based compensation is as follows:

	December 31,
	2016		2015		2014
Salaries and employee benefits	$	5,830	$	4,616	$	3,128
General and administrative expenses	563		450		451
Income tax benefit related to stock-based compensation included in net income	2,523		1,856		1,444

Restricted Stock Unit Activity

Restricted stock unit activity as of December 31, 2016, 2015 and 2014:

	Number of Restricted Stock Units		Weighted- Average Grant-date Fair Value
Outstanding on December 31, 2013	270,455		$	18.64
Granted	295,733		18.02
Vested and converted to common stock	(93,159	)	19.65
Forfeited	(10,312	)	17.45
Outstanding on December 31, 2014	462,717		18.07
Granted	184,541		23.94
Vested and converted to common stock	(146,307	)	18.80
Forfeited	(27,016	)	20.74
Outstanding on December 31, 2015	473,935		19.98
Granted	207,405		22.92
Vested and converted to common stock	(119,455	)	20.02
Forfeited	(24,612	)	22.81
Outstanding on December 31, 2016	537,273		20.97

Performance Stock Unit Activity

Performance share unit activity as of December 31, 2016, 2015 and 2014:

	Number of Performance Stock Units		Weighted- Average Grant-date Fair Value
Outstanding on December 31, 2013	61,321		$	19.77
Granted	186,705		17.19
Vested and converted to common stock	(9,429	)	27.18
Forfeited	(9,427	)	27.18
Outstanding on December 31, 2014	229,170		17.06
Granted	59,221		23.64
Vested and converted to common stock	(13,397	)	20.62
Forfeited	(2,970	)	20.62
Outstanding on December 31, 2015	272,024		18.28
Granted	125,388		22.98
Vested and converted to common stock	(160,600	)	15.51
Forfeited	—		—
Outstanding on December 31, 2016	236,812		22.64