Stock-based Compensation and Benefits - (Tables)

3 Months Ended

Mar. 31, 2017

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

Summary of Option Activity

The Company issued stock options in accordance with the 2014 Plan during 2016. The following table summarizes stock option activity for the three months ended March 31, 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	98,389		34.01
Forfeited	(4,713)		18.90
Surrendered	(432,939)		19.98
Exercised	(126,958)		19.98
Outstanding at March 31, 2017	1,719,701	$	20.56	6.32	$	20,635
Options exercisable at March 31, 2017	1,292,139	$	19.88	3.53	$	16,301
Options expected to vest	1,377,509	$	20.77	4.31	$	19,649

Summary of Restricted Stock Activity

The following table summarizes restricted stock activity during the three months ended March 31, 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
Vested	(99,967)		13.01	—		—
Granted	47,199		33.94	49,758		33.22
Forfeited	(2,602)		18.94	(932)		18.22
Surrendered	(87,494)		13.01	—		—
Unvested at March 31, 2017	356,407	$	19.68	134,121	$	23.78