Earnings Per Share (Tables)

9 Months Ended

Aug. 31, 2015

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):

	Nine Months Ended August 31,						Three Months Ended August 31,
	2015			2014			2015			2014
Numerator:
Net income	$	40,626		$	65,548		$	23,254		$	28,361
Less: Distributed earnings allocated to nonvested restricted stock	(24		)	(18		)	(7		)	(6		)
Less: Undistributed earnings allocated to nonvested restricted stock	(115		)	(159		)	(63		)	(73		)
Numerator for basic earnings per share	40,487			65,371			23,184			28,282
Effect of dilutive securities:
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes	2,000			2,000			667			667
Add: Undistributed earnings allocated to nonvested restricted stock	115			159			63			73
Less: Undistributed earnings reallocated to nonvested restricted stock	(104		)	(142		)	(57		)	(66		)
Numerator for diluted earnings per share	$	42,498		$	67,388		$	23,857		$	28,956

	Nine Months Ended August 31,				Three Months Ended August 31,
	2015		2014		2015		2014
Denominator:
Weighted average shares outstanding — basic	92,005		88,389		92,065		91,793
Effect of dilutive securities:
Share-based payments	1,198		1,823		1,407		1,875
Convertible senior notes	8,402		8,402		8,402		8,402
Weighted average shares outstanding — diluted	101,605		98,614		101,874		102,070
Basic earnings per share	$	.44	$	.74	$	.25	$	.31
Diluted earnings per share	$	.42	$	.68	$	.23	$	.28