XML 36 R36.htm IDEA: XBRL DOCUMENT

Stock-Based Compensation-Summary of Restricted Stock Unit Activity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Feb. 28, 2013	Feb. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at end of period, Number of Shares	191	230
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of period, Number of Shares	192	233
Forfeited, Number of Shares	1	3
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at beginning of period, Weighted-Average Grant-Date Fair Value	$ 49.65	$ 43.23
Forfeited, Weighted-Average Grant-Date Fair Value	$ 51.75	$ 44.20
Outstanding at end of period, Weighted-Average Grant-Date Fair Value	$ 49.63	$ 43.22

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References+ Details

- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References+ Details