Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Earnings per Share

		Three Months Ended
		March 31,
(in thousands, except per share data)			2015		2014
Net income		$	14,205	$	19,125
Denominator for basic earnings per share -
	weighted-average number of common
	shares outstanding during the period		52,463		53,650
Incremental common shares attributable to
	exercise of dilutive options		391		436
Incremental common shares attributable
	to outstanding restricted shares and
	restricted stock units		191		191
Denominator for diluted earnings per share			53,045		54,277
Basic earnings per share		$	0.27	$	0.36
Diluted earnings per share		$	0.27	$	0.35