Stockholders' Equity (Tables)

3 Months Ended

Oct. 31, 2019

Oct. 31, 2018

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, 2019:

	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total Stockholders' Equity
Balances at July 31, 2019	$	548	$	329,969		$	637,843		$	(46,332	)	$	(71,254	)	$	850,774
Net income	—		—			37,498			—			—			37,498
Other comprehensive loss, net of tax	—		—			—			—			(29		)	(29		)
Issuance of shares of Class A Common Stock under stock plan	—		(6,410		)	—			2,553			—			(3,857		)
Tax benefit and withholdings from deferred compensation distributions	—		64			—			—			—			64
Stock-based compensation expense	—		3,618			—			—			—			3,618
Purchase of shares of Class A Common Stock	—		—			—			—			—			—
Cash dividends on Common Stock
Class A — $0.22 per share	—		—			(10,822		)	—			—			(10,822		)
Class B — $0.20 per share	—		—			(711		)	—			—			(711		)
Balances at October 31, 2019	$	548	$	327,241		$	663,808		$	(43,779	)	$	(71,283	)	$	876,535

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 income	—		—			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	—		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	—		—			(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