Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

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,
	2016		2015		2014
Net income	$	26,155	$	80,052	$	61,051
	(shares in thousands)
Shares of common stock and common stock equivalents:
Weighted average common shares used in basic computation		134,401		137,242		131,770
Dilutive effect of common stock equivalents		1,138		1,583		6,781
Weighted average common shares used in dilutive computation		135,539		138,825		138,551
Basic earnings per share	$	0.19	$	0.58	$	0.46
Diluted earnings per share	$	0.19	$	0.58	$	0.44