v3.19.2

Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Numerator:
Net income	$ 15,073	$ 16,670	$ 36,628	$ 186,016
Denominator:
Weighted average shares outstanding (shares)	43,441,350	44,158,611	43,431,283	44,177,342
Effect of dilutive securities (shares)	7,759	11,070	7,721	12,334
Diluted weighted average shares outstanding (shares)	43,449,109	44,169,681	43,439,004	44,189,676
Basic and diluted earnings per share
Basic and diluted (in dollars per share)	$ 0.35	$ 0.38	$ 0.84	$ 4.21
Anti-dilutive shares excluded in the computation of diluted earnings per share (shares)	18,792	41,107	18,792	47,725

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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