Earnings Per Share (Tables)

6 Months Ended

May 31, 2017

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

Basic and diluted earnings per share were calculated as follows (in thousands, except per share amounts):

	Three Months Ended May 31,						Six Months Ended May 31,
	2017			2016			2017			2016
Numerator:
Net income	$	31,782		$	15,597		$	46,041		$	28,724
Less: Distributed earnings allocated to nonvested restricted stock	(14		)	(10		)	(29		)	(21		)
Less: Undistributed earnings allocated to nonvested restricted stock	(200		)	(66		)	(285		)	(116		)
Numerator for basic earnings per share	31,568			15,521			45,727			28,587

	Three Months Ended May 31,						Six Months Ended May 31,
	2017			2016			2017			2016
Effect of dilutive securities:
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes	664			667			1,327			1,333
Add: Undistributed earnings allocated to nonvested restricted stock	200			66			285			116
Less: Undistributed earnings reallocated to nonvested restricted stock	(175		)	(59		)	(251		)	(104		)
Numerator for diluted earnings per share	$	32,257		$	16,195		$	47,088		$	29,932
Denominator:
Weighted average shares outstanding — basic	85,445			84,196			85,285			86,704
Effect of dilutive securities:
Share-based payments	3,885			2,122			3,288			1,954
Convertible senior notes	8,402			8,402			8,402			8,402
Weighted average shares outstanding — diluted	97,732			94,720			96,975			97,060
Basic earnings per share	$	.37		$	.18		$	.54		$	.33
Diluted earnings per share	$	.33		$	.17		$	.49		$	.31