Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

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

Summary of Restricted Stock Units Activity

RSU activity for the nine months ended September 30, 2015 is summarized as follows:

	Number of Shares		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2014	179,936		$	143.25
Granted	116,295		$	134.46
Forfeited	(493	)	$	175.16
Settled	(87,410	)	$	102.00
Outstanding at September 30, 2015	208,328		$	155.57

Summary of Stock Option Activity

Stock option activity for the nine months ended September 30, 2015 is summarized as follows:

	Number of Shares		Weighted Average Exercise Price
Outstanding at December 31, 2014	162,824		$	18.79
Granted	—		$	—
Exercised	(4,675	)	$	15.27
Forfeited	—		$	—
Outstanding at September 30, 2015	158,149		$	18.89