Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of Basic and Diluted Earnings Per Share

The following is a reconciliation of the basic and diluted earnings per share computation:

	Year Ended December 31,
	2015		2014		2013
	(shares in thousands)
Net income	$	80,052	$	61,051	$	51,537
Shares of common stock and common stock equivalents:
Weighted average shares used in basic computation		137,242		131,770		126,651
Dilutive effect of common stock equivalents		1,583		6,781		13,146
Weighted average shares used in dilutive computation		138,825		138,551		139,797
Basic earnings per share	$	0.58	$	0.46	$	0.41
Diluted earnings per share	$	0.58	$	0.44	$	0.37