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Stock Repurchase Program, Authorized Amount, Increase During Period

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, shown as a percentage of the original share amount.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash outflow to reacquire common stock during the period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of share-based compensation awards.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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STOCK-BASED COMPENSATION PLANS AND SHARE REPURCHASE PROGRAM (Details) - USD ($)	1 Months Ended	3 Months Ended		19 Months Ended
	Apr. 28, 2016	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award
Total unrecognized compensation cost related to non-vested stock awards		$ 22,500,000		$ 22,500,000
Non-cash stock-based compensation expense		$ 1,400,000	$ 1,300,000
Weighted average period over which compensation cost is expected to be recognized (in years)		1 year 9 months
Authorized repurchase amount, increase in current period					$ 500,000,000.0
Authorized repurchase amount, authorized in prior period						$ 500,000,000.0
Authorized amount of stock to be repurchased					$ 1,000,000,000.0
Stock repurchased during period		$ 218,900,000		792,000,000
Cash settled for repurchase of common stock		201,002,000	$ 60,557,000
Remaining authorized repurchase amount (in usd)		$ 208,000,000		208,000,000
Time-based stock options
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period		4 years
Expected term		6 years 3 months 18 days
Expected volatility rate		30.70%
Risk free interest rate, minimum		1.32%
Risk free interest rate, maximum		1.90%
Time-based stock options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Expected dividend yield		2.31%
Time-based stock options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Expected dividend yield		3.06%
Time-based stock options \| Year 1
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		25.00%
Time-based stock options \| Year 2
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		25.00%
Time-based stock options \| Year 3
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		25.00%
Time-based stock options \| Year 4
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		25.00%
Time-based restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period		3 years
Time-based restricted stock awards \| Year 1
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		33.33%
Time-based restricted stock awards \| Year 2
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		33.33%
Time-based restricted stock awards \| Year 3
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights (percentage per year)		33.33%
Market-based restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period		3 years
Expected volatility rate		34.20%
Vesting rights percentage		100.00%
Risk free interest rate		0.89%
Market-based restricted stock awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights percentage		0.00%
Market-based restricted stock awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Vesting rights percentage		200.00%
Time Based and Market Based Compensation Awards
Share-based Compensation Arrangement by Share-based Payment Award
Total unrecognized compensation cost related to non-vested stock awards		$ 14,100,000		$ 14,100,000
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Cash settled for repurchase of common stock	$ 17,900,000
2015 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized		11,500,000.0		11,500,000.0
Number of remaining shares available for issue		7,100,000		7,100,000