Net income per common share is calculated as basic net income per share and diluted net income per share. Basic net income per share excludes dilution and is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted net income per share is computed in the same manner as basic net income after assuming issuance of common stock for all potentially dilutive equivalent shares, which includes the potential dilution that could occur: (1) if all the Company's outstanding stock options that are in-the-money were exercised (using the treasury stock method); (2) if the RSUs with service conditions were fully vested (using the treasury stock method); (3) if the RSUs with service and market conditions were considered contingently issuable; and (4) if the participation by employees in the Employee Stock Purchase Plan, which expired on March 31, 2009, is considered as an option (using the treasury stock method). Anti-dilutive instruments are not considered in this calculation.

The Company considered the allocation of undistributed net income for multiple classes of common stock and determined that it was appropriate to allocate undistributed net income between the Company's Class A and Class B common stock on an equal basis. For purposes of making this determination, the Company's charter provides that the holders of Class A and Class B common stock have equal rights and privileges except with respect to voting on most matters voted by Joseph Field or David Field.

For the periods indicated, the following tables present the computations of basic and diluted net income per share:

	Computation Of Net Income (Loss) Per Share
	Year Ended December 31, 2011
	(amounts in thousands, except share and per share data)
				Net Income (Loss)
	Net Income (Loss)		Shares	Per Share
Basic net income (loss) per common share:
Net income (loss)	$	68,510	36,369,410	$	1.88
Impact of equity awards			1,394,555
Diluted net income (loss) per common share:
Net income (loss)	$	68,510	37,763,965	$	1.81

	Computation Of Net Income (Loss) Per Share
	Year Ended December 31, 2010
	(amounts in thousands, except share and per share data)
				Net Income (Loss)
	Net Income (Loss)		Shares	Per Share
Basic net income (loss) per common share:
Net income (loss)	$	46,436	35,712,026	$	1.30
Impact of equity awards			1,967,360
Diluted net income (loss) per common share:
Net income (loss)	$	46,436	37,679,386	$	1.23

	Computation Of Net Income (Loss) Per Share
	Year Ended December 31, 2009
	(amounts in thousands, except share and per share data)
				Net Income (Loss)
	Net Income (Loss)		Shares	Per Share
Basic net income (loss) per common share:
Net income (loss)	$	5,398	35,321,431	$	0.15
Impact of equity awards			1,081,369
Diluted net income (loss) per common share:
Net income (loss)	$	5,398	36,402,800	$	0.15

For the periods indicated, the following table provides the incremental shares excluded as they were anti-dilutive under the treasury stock method:

		Impact Of Equity Awards
		Years Ended December 31,
		2011		2010		2009
		(amounts in thousands, except per share data)
Dilutive or anti-dilutive for all potentially
dilutive equivalent shares		dilutive		dilutive		anti-dilutive
Excluded shares as anti-dilutive under
the treasury stock method
	Price range of options excluded: from	$	8.21	$	9.63	$	3.46
	Price range of options excluded: to	$	48.21	$	48.21	$	48.21
	Options excluded		54		66		917
	RSUs with service conditions		945		43		748
	RSUs with service and market conditions		200		200		56
	Total RSUs excluded		1,145		243		804