Stock-Based Compensation (Tables)

9 Months Ended

Jul. 31, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summarized Activity Related to Stock Options

The following table summarizes activity related to stock options for the nine months ended July 31, 2015:

	Number of Options			Weighted-Average ExercisePrice Per Share		Aggregate Intrinsic Value		Weighted Average Remaining Term
Outstanding at October 31, 2014		1,686		$	42.77
Granted		316		$	79.66
Exercised		(176	)	$	29.14
Forfeited or expired		(29	)	$	67.85
Outstanding at July 31, 2015		1,797		$	50.18	$	44,699	6.2 years
Vested or expected to vest at July 31, 2015		1,780		$	49.92	$	44,675	6.2 years
Exercisable at July 31, 2015		1,075		$	37.05	$	39,833	4.8 years

Fair Value Assumptions of Stock Options

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

Nine months ended	July 31, 2015	July 31, 2014
Expected volatility	30.3%-39.5%	40.1%-44.7%
Expected dividend yield	1.06%-1.10%	0.98%-1.03%
Risk-free interest rate	1.57%-1.85%	1.51%-1.79%
Expected life of the option (in years)	5.4-6.1	5.4-6.1

Summarized Activity Related to Restricted Stock

The following table summarizes activity related to restricted shares during the nine months ended July 31, 2015:

	Number of Shares			Weighted-Average Grant Date Fair Value
Restricted shares at October 31, 2014		71		$	63.53
Granted		22		$	79.60
Forfeited		(2	)	$	69.48
Vested		(34	)	$	57.23
Restricted shares at July 31, 2015		57		$	73.44

Summarized Activity Related to Restricted Stock Units

The following table summarizes activity related to restricted share units during the nine months ended July 31, 2015:

	Number of Units			Weighted-Average Grant Date Fair Value
Restricted share units at October 31, 2014		5		$	61.59
Granted		13		$	76.19
Vested		(5	)	$	61.59
Restricted share units at July 31, 2015		13		$	76.19

Summarized Activity Related to Director Deferred Compensation Shares

The following table summarizes activity related to director deferred compensation share equivalent units during the nine months ended July 31, 2015:

	Number of Shares			Weighted-Average Grant Date Fair Value
Outstanding at October 31, 2014		110		$	29.74
Restricted share units vested		5		$	61.59
Dividend equivalents		1		$	76.31
Distributions		(20	)	$	21.46
Outstanding at July 31, 2015		96		$	33.72