Stock-based Compensation and Benefits - (Tables)

6 Months Ended

Jun. 30, 2017

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

The Company issued stock options in accordance with the 2014 Plan during 2017. The following table summarizes stock option activity for the six months ended June 30, 2017:


				Weighted
				average
		Weighted		remaining
		average		contractual	Aggregate
		exercise		term in	intrinsic
	Options	price		years	value
Outstanding at December 31, 2016	2,185,922	$	19.81	4.85	$	7,753
Granted	99,920		33.98
Exercised	(585,750)		19.93
Forfeited	(16,225)		21.84
Outstanding at June 30, 2017	1,683,867	$	20.61	4.52	$	21,136
Options exercisable at June 30, 2017	1,429,584	$	19.80	3.77	$	19,021
Options expected to vest	1,662,690	$	20.53	4.46	$	20,994

Summary of Restricted Stock Activity

The following table summarizes restricted stock and performance stock activity during the six months ended June 30, 2017:


		Weighted				Weighted
	Restricted	average grant-		Performance		average grant-
	shares	date fair value		stock units		date fair value
Unvested at December 31, 2016	499,271	$	15.82	85,295	$	18.22
Granted	65,990		33.43	49,758		33.22
Vested	(298,086)		15.27	—		—
Forfeited	(11,111)		22.23	(5,994)		20.90
Unvested at June 30, 2017	256,064	$	20.82	129,059	$	23.88