Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Weighted-Average Number of Shares of Common Stock Used to Calculate Basic and Diluted Earnings Per Share

The table below presents the weighted-average number of shares of common stock used to calculate basic and diluted earnings per share:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2015		2014		2015		2014
Weighted-average number of shares of common stock for    calculating basic earnings per share		26,142		25,912		26,117		25,851
Effect of potentially dilutive securities from    equity-based compensation		131		308		155		372
Weighted-average number of shares of common stock for    calculating diluted earnings per share		26,273		26,220		26,272		26,223

Securities Not Included in Computation of Diluted Earnings Per Share

The following securities were not included in the computation of diluted earnings per share as their effect would have been anti-dilutive:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2015		2014		2015		2014
Options to purchase shares of common stock		650		15		215		9

Summary of Share Repurchase Activities

The following table presents share repurchase activities during the three and six month ended June 30, 2015 and 2014.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share amounts)	2015		2014		2015		2014
Number of shares repurchased		89		—		102		—
Aggregate purchase price	$	2,754		—	$	3,132		—
Average price per repurchased shares	$	30.79		—	$	30.81		—