Share-Based Plans (Tables)

3 Months Ended

Apr. 30, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes the non-vested restricted stock awards and restricted stock units activity for the first quarter of 2016:

	Number of Shares		Weighted Average Grant-Date Fair Value Per Share
Outstanding non-vested restricted stock at January 30, 2016	785,149		$	40.96
Granted	241,897		45.11
Vested	(215,582	)	41.94
Forfeited	—		—
Outstanding non-vested restricted stock at April 30, 2016	811,464		$	41.94

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

The following table summarizes the activity related to PSUs for the first quarter of 2016:

	PSUs, excluding 2013 CEO PSUs			2013 CEO PSUs
	Number of Shares	Weighted Average Grant-Date Fair Value Per Share		Number of Shares	Weighted Average Grant-Date Fair Value Per Share
Outstanding performance share units at January 30, 2016	—	$	—	12,600	$	34.06
Granted	379,794	41.04		—	—
Vested	—	—		—	—
Forfeited	—	—		—	—
Outstanding performance share units at April 30, 2016	379,794	$	41.04	12,600	$	34.06

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes stock option activity for the first quarter of 2016:

	Number of Options		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (000's)
Outstanding stock options at January 30, 2016	1,174,902		$	38.26
Exercised	(78,813	)	34.66
Forfeited	—		—
Outstanding stock options at April 30, 2016	1,096,089		$	38.52	3.0	$	8,042
Vested or expected to vest at April 30, 2016	1,091,213		$	38.54	3.0	$	7,993
Exercisable at April 30, 2016	842,651		$	39.30	2.7	$	5,532

Schedule of Share Based Compensation, Additional Information [Table Text Block]

The following activity occurred under our share-based plans during the respective periods shown:

	First Quarter
(In thousands)	2016		2015
Total intrinsic value of stock options exercised	$	800	$	4,783
Total fair value of restricted stock vested	9,783		4,782
Total fair value of performance shares vested	—		—

Performance Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share Based Compensation, Additional Information [Table Text Block]

We have begun or expect to begin recognizing expense related to PSUs as follows:

Issue Year	Outstanding PSUs at April 30, 2016	Actual Grant Date	Expected Valuation (Grant) Date	Actual or Expected Expense Period
2014	379,794	March 2016		Fiscal 2016
2015	273,340		March 2017	Fiscal 2017
2016	362,972		March 2018	Fiscal 2018
Total	1,016,106