Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018	Feb. 01, 2019	Nov. 30, 2018
Numerator:
Net income (loss)	$ 47,461	$ 57,308	$ 77,472	$ (13,947)
Less: Distributed earnings allocated to nonvested restricted stock	(14)	(12)	(27)	0
Less: Undistributed earnings allocated to nonvested restricted stock	(280)	(310)	(456)	0
Numerator for basic earnings (loss) per share	47,167	56,986	76,989	(13,947)
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes	0	796	541	0
Add: Undistributed earnings allocated to nonvested restricted stock	280	310	456	0
Less: Undistributed earnings reallocated to nonvested restricted stock	(265)	(269)	(421)	0
Numerator for diluted earnings (loss) per share	$ 47,182	$ 57,823	$ 77,565	$ (13,947)
Denominator:
Weighted average shares outstanding — basic (in shares)	87,641	87,581	87,310	87,370
Effect of dilutive securities: Share-based payments (in shares)	4,725	5,176	4,463	0
Effect of dilutive securities: Convertible senior notes (in shares)	0	8,402	2,862	0
Weighted average shares outstanding — diluted (in shares)	92,366	101,159	94,635	87,370
Basic earnings (loss) per share (in dollars per share)	$ 0.54	$ 0.65	$ 0.88	$ (0.16)
Diluted earnings (loss) per share (in dollars per share)	$ 0.51	$ 0.57	$ 0.82	$ (0.16)
Antidilutive securities excluded from computation of earnings per share (in shares)	800	1,600	800
Mortgages and notes payable	$ 1,854,556		$ 1,854,556			$ 2,060,263
1.375% Convertible senior notes due February 1, 2019 [Member] | Convertible Notes Payable [Member]
Mortgages and notes payable	$ 0		$ 0		$ 230,000	$ 229,788
Senior notes, rate					1.375%