Stockholders' Equity (Tables)

3 Months Ended

Oct. 31, 2018

Oct. 31, 2017

Equity [Abstract]

Schedule of Stockholders Equity [Table Text Block]

The following table illustrates the changes in the balances of each component of stockholders' equity for the three months ended October 31, 2018:

	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total Stockholders' Equity
Balances at July 31, 2018	$	548	$	325,631		$	553,454		$	(71,120	)	$	(56,401	)	$	752,112
Net earnings	—		—			30,637			—			—			30,637
Other comprehensive loss, net of tax	—		—			—			—			(9,830		)	(9,830		)
Issuance of shares of Class A Common Stock under stock plan	—		(4,505		)	—			14,569			—			10,064
Tax benefit and withholdings from deferred compensation distributions	—		91			—			—			—			91
Stock-based compensation expense (Note H)	—		4,965			—			—			—			4,965
Purchase of shares of Class A Common Stock	—		—			—			(1,863		)	—			(1,863		)
Cumulative adjustment for ASU 2014-09, net of tax(Note B)	—		—			(2,137		)	—			—			(2,137		)
Cash dividends on Common Stock
Class A — $0.21 per share	—		—			(10,403		)	—			—			(10,403		)
Class B — $0.20 per share	—		—			(693		)	—			—			(693		)
Balances at October 31, 2018	$	548	$	326,182		$	570,858		$	(58,414	)	$	(66,231	)	$	772,943

The following table illustrates the changes in the balances of each component of stockholders' equity for the three months ended October 31, 2017:

	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total Stockholders' Equity
Balances at July 31, 2017	$	548	$	322,608		$	507,136		$	(85,470	)	$	(44,682	)	$	700,140
Net earnings	—		—			25,836			—			—			25,836
Other comprehensive loss, net of tax	—		—			—			—			(7,380		)	(7,380		)
Issuance of shares of Class A Common Stock under stock plan	—		(3,863		)	—			5,086			—			1,223
Tax benefit and withholdings from deferred compensation distributions	—		168			—			(422		)	—			(254		)
Stock-based compensation expense (Note H)	—		3,744			—			—			—			3,744
Cash dividends on Common Stock
Class A — $0.21 per share	—		—			(9,964		)	—			—			(9,964		)
Class B — $0.19 per share	—		—			(675		)	—			—			(675		)
Balances at October 31, 2017	$	548	$	322,657		$	522,333		$	(80,806	)	$	(52,062	)	$	712,670