Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share Reconciliation

Following is a reconciliation of basic earnings per share (“EPS”) and diluted EPS (in thousands, except per share amounts):

	Year Ended December 31,
	2011						2010						2009
	Net Income		Shares	Per Share Amount			Net Income		Shares	Per Share Amount			Net Income		Shares	Per Share Amount
Basic EPS	$	103,637	38,384	$	2.70		$	53,548	38,083	$	1.41		$	22,644	37,537	$	0.60
Dilutive effect of 2.875% convertible debt	1,808		3,033	(0.15		)	2,270		3,223	(0.05		)	—		—	—
Dilutive effect of stock options, restricted stock units, and shares issuable to Philips	—		630	(0.04		)	—		431	(0.02		)	—		368	—
Diluted EPS	$	105,445	42,047	$	2.51		$	55,818	41,737	$	1.34		$	22,644	37,905	$	0.60

Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share

The following table sets forth the schedule of anti-dilutive securities excluded from the computation of diluted EPS (number of shares, in thousands):

	Year Ended December 31,
	2011	2010	2009
Convertible debt	—	—	3,407
Stock options	358	953	961
Restricted stock units	322	477	—