Employee Benefit and Stock Plans (Tables)

12 Months Ended

Nov. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Based Compensation Expense

The following table presents our stock-based compensation expense (in thousands):

	Years Ended November 30,
	2018		2017		2016
Stock options	$	917	$	2,592	$	7,076
Restricted stock	4,600		4,177		2,630
PSUs	8,790		6,439		5,343
Director awards	1,554		1,425		1,801
Total	$	15,861	$	14,633	$	16,850

Stock option transactions

Stock option transactions are summarized as follows:

	Years Ended November 30,
	2018				2017				2016
	Options		Weighted Average Exercise Price		Options		Weighted Average Exercise Price		Options		Weighted Average Exercise Price
Options outstanding at beginning of year	9,265,240		$	17.64	12,731,545		$	18.95	12,635,644		$	19.39
Granted	—		—		—		—		1,012,686		16.21
Exercised	(1,195,926	)	16.73		(1,650,360	)	16.01		(551,898	)	13.95
Cancelled	(831,770	)	33.05		(1,815,945	)	28.31		(364,887	)	34.07
Options outstanding at end of year	7,237,544		$	16.02	9,265,240		$	17.64	12,731,545		$	18.95
Options exercisable at end of year	6,948,670		$	16.01	8,307,632		$	17.86	10,506,810		$	19.70
Options available for grant at end of year	6,418,197				7,495,792				7,034,523

Stock options outstanding and stock options exercisable

Stock options outstanding and stock options exercisable at November 30, 2018 are summarized as follows:

	Options Outstanding				Options Exercisable
Range of Exercise Price	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life
$  6.32 to $11.05	1,201,167	$	6.36	2.9	1,201,167	$	6.36
$11.06 to $14.62	2,048,758	12.99		4.0	2,048,758	12.99
$14.63 to $16.20	1,906,964	15.14		4.1	1,906,964	15.14
$16.21 to $28.10	1,300,596	16.35		6.8	1,011,722	16.39
$28.11 to $45.68	780,059	40.46		0.8	780,059	40.46
$  6.32 to $45.68	7,237,544	$	16.02	4.0	6,948,670	$	16.01	3.8

Assumptions of Black-Scholes option-pricing model

The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:

	Years Ended November 30,
	2018	2017	2016
Risk-free interest rate	—	—	1.3	%
Expected volatility factor	—	—	41.3	%
Expected dividend yield	—	—	.6	%
Expected term	—	—	5 years

Restricted stock transactions

Restricted stock transactions are summarized as follows:

	Years Ended November 30,
	2018				2017				2016
	Shares		Weighted Average per Share Grant Date Fair Value		Shares		Weighted Average per Share Grant Date Fair Value		Shares		Weighted Average per Share Grant Date Fair Value
Outstanding at beginning of year	503,926		$	21.69	604,619		$	16.24	416,977		$	15.88
Granted	303,030		23.05		321,835		24.49		453,703		15.73
Vested	(221,951	)	19.79		(364,670	)	16.09		(252,854	)	14.78
Cancelled	(29,548	)	21.76		(57,858	)	15.61		(13,207	)	15.12
Outstanding at end of year	555,457		$	23.19	503,926		$	21.69	604,619		$	16.24

Schedule of Share Based Payments Performance Shares Activity

PSU transactions are summarized as follows:

	Years Ended November 30,
	2018				2017				2016
	Shares		Weighted Average per Share Grant Date Fair Value		Shares		Weighted Average per Share Grant Date Fair Value		Shares		Weighted Average per Share Grant Date Fair Value
Outstanding at beginning of year	925,232		$	20.09	809,860		$	17.19	820,209		$	15.52
Granted	603,424		25.70		424,797		22.99		369,281		13.81
Vested	(437,689	)	31.28		(278,460	)	16.67		(374,630	)	10.21
Cancelled	—		—		(30,965	)	14.92		(5,000	)	16.21
Outstanding at end of year	1,090,967		$	18.70	925,232		$	20.09	809,860		$	17.19