Equity Awards (Tables)

6 Months Ended

Jun. 30, 2014

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

Schedule of Share-based Compensation, Stock Options, Activity

Information related to stock options at June 30, 2014 is as follows:

	Number of Stock Options		Weighted Average Option Price		Average  Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2014	342,448		$	9.92
Exercised	(73,407	)	21.53
Cancelled	—		—
Expired	—		—
Outstanding at June 30, 2014	269,041		$	6.75	4.1	$	8,441,233

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

Information related to restricted shares at June 30, 2014 is as follows:

	Number of Unvested Restricted Shares		Weighted Average Grant Date Fair Value		Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2014	654,400		$	26.00
Granted	348,298		33.30
Vested	(246,543	)	25.95
Cancelled	(9,759	)	27.97
Outstanding at June 30, 2014	746,396		$	29.40	1.4	$	28,460,079