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Changes in Equity (Tables)

3 Months Ended

Nov. 30, 2018

Equity [Abstract]

Schedule of Changes in Equity

The following tables summarize changes in the components of stockholders' equity for the three months ended November 30, 2018 and 2017 (in millions):



	Common Stock Outstanding
	Shares			Amount				Paid-in Capital				Retained Earnings				Accumulated Other Comprehensive Loss				Treasury Stock, at cost				Total
Balance, August 31, 2018	40.0			$	0.5			$	906.3			$	1,999.2			$	(114.8	)		$	(1,074.4	)		$	1,716.8
Net income	—			—				—				79.6				—				—				79.6
Other comprehensive loss	—			—				—				—				(6.2		)		—				(6.2		)
ASC 606 adjustments	—			—				—				(13.0		)		—				—				(13.0		)
Amortization, issuance, and cancellations of restricted stock grants	0.1			—				3.8				—				—				—				3.8
Employee stock purchase plan issuances	—			—				0.1				—				—				—				0.1
Cash dividends of $0.13 per share paid on common stock	—			—				—				(5.2		)		—				—				(5.2		)
Repurchases of common stock	(0.2	)		—				—				—				—				(25.0		)		(25.0		)
Balance, November 30, 2018	39.9			$	0.5			$	910.2			$	2,060.6			$	(121.0	)		$	(1,099.4	)		$	1,750.9



	Common Stock Outstanding
	Shares			Amount				Paid-in Capital				Retained Earnings				Accumulated Other Comprehensive Loss				Treasury Stock, at cost				Total
Balance, August 31, 2017	41.8			$	0.5			$	881.0			$	1,659.9			$	(99.7	)		$	(776.1	)		$	1,665.6
Net income	—			—				—				71.5				—				—				71.5
Other comprehensive loss	—			—				—				—				(8.9		)		—				(8.9		)
Amortization, issuance, and cancellations of restricted stock grants	0.1			—				2.5				—				—				0.1				2.6
Employee stock purchase plan issuances	—			—				0.2				—				—				—				0.2
Cash dividends of $0.13 per share paid on common stock	—			—				—				(5.5		)		—				—				(5.5		)
Stock options exercised	—			—				0.6				—				—				—				0.6
Balance, November 30, 2017	41.9			$	0.5			$	884.3			$	1,725.9			$	(108.6	)		$	(776.0	)		$	1,726.1