Income (Loss) Per Share of Common Stock (Tables)

12 Months Ended

Nov. 30, 2013

Earnings Per Share [Abstract]

Reconciliation of Numerator and Denominator Used to Calculate Basic and Diluted Income (Loss) Per Share

A reconciliation of the numerator and denominator used to calculate basic and diluted income (loss) per share of common stock (“EPS”) is presented in the following table:

	Year Ended
	2013			2012			2011
	(In millions, except per share amounts)
Numerator for Basic and Diluted EPS
Income (loss) from continuing operations	$	167.7		$	(5.7	)	$	2.9
Income from discontinued operations, net of income taxes		0.2			3.1			—
Net income (loss)		167.9			(2.6	)		2.9
Income allocated to participating securities		(3.2	)		—			—
Net income (loss) for basic earnings per share		164.7			(2.6	)		2.9
Interest on convertible subordinated debentures		8.1			—			—
Net income (loss) for diluted earnings per share	$	172.8		$	(2.6	)	$	2.9
Denominator:
Basic weighted average shares		59.6			59.0			58.7
Effect of:
Convertible subordinated notes		22.1			—			—
Employee stock options		0.2			—			—
Diluted weighted average shares		81.9			59.0			58.7
Basic EPS:
Income (loss) per share from continuing operations	$	2.76		$	(0.09	)	$	0.05
Income from discontinued operations, net of income taxes		—			0.05			—
Net income (loss) per share	$	2.76		$	(0.04	)	$	0.05
Diluted EPS:
Income (loss) per share from continuing operations	$	2.11		$	(0.09	)	$	0.05
Income from discontinued operations, net of income taxes		—			0.05			—
Net income (loss) per share	$	2.11		$	(0.04	)	$	0.05

Schedule of Potentially Dilutive Securities Excluded from Computation

The following table sets forth the potentially dilutive securities excluded from the computation because their effect would have been anti-dilutive:

	Year Ended
	2013		2012		2011
	(In millions)
4 1/16% Debentures		—		22.2		22.2
Unvested restricted shares		1.1		1.1		0.8
Employee stock options		—		0.9		1.1
Total potentially dilutive securities		1.1		24.2		24.1