A summary of the earnings per share calculation is as follows (in thousands, except per share amounts):



	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2012			2011		2012		2011
Basic earnings per share:
Net income (loss)	$	(7,176	)	$	10,599	$	285	$	20,453
Weighted-average common shares	28,619			28,938		28,423		28,784
Basic earnings (loss) per share	$	(0.25	)	$	0.37	$	0.01	$	0.71
Diluted earnings per share (1):
Net income (loss)	$	(7,176	)	$	10,599	$	285	$	20,453
Weighted-average common shares	28,619			28,938		28,423		28,784
Effect of dilutive securities:
Employee stock plans	—			1,408		1,201		1,487
Diluted weighted-average common shares	28,619			30,346		29,624		30,271
Diluted earnings (loss) per share	$	(0.25	)	$	0.35	$	0.01	$	0.68

_______________

(1)

The Company includes the shares underlying performance-based awards in the calculation of diluted earnings per share when they become contingently issuable per ASC 260-10, Earnings per Share and excludes such shares when they are not contingently issuable. The Company has excluded all performance-based awards underlying the fiscal 2012 and 2011 awards as those shares were not contingently issuable as of the end of the periods reported.