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Stockholders' Equity
6 Months Ended
Jan. 31, 2021
Stockholders' Equity Note [Abstract]  
Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity
The following table illustrates the changes in the balances of each component of stockholders' equity for the three months ended January 31, 2021:
Common StockAdditional
Paid-In Capital
Retained EarningsTreasury StockAccumulated Other Comprehensive LossTotal Stockholders' Equity
Balances at October 31, 2020$548 $332,121 $726,546 $(109,146)$(69,668)$880,401 
Net income— — 30,860 — — 30,860 
Other comprehensive income, net of tax— — — — 18,207 18,207 
Issuance of shares of Class A Common Stock under stock plan— 59 — 230 — 289 
Stock-based compensation expense— 1,897 — — — 1,897 
Repurchase of shares of Class A Common Stock— — — (873)— (873)
Cash dividends on Common Stock:
Class A — $0.2200 per share— — (10,667)— — (10,667)
Class B — $0.2200 per share— — (779)— — (779)
Balances at January 31, 2021$548 $334,077 $745,960 $(109,789)$(51,461)$919,335 

The following table illustrates the changes in the balances of each component of stockholders' equity for the six months ended January 31, 2021:
Common StockAdditional
Paid-In Capital
Retained EarningsTreasury StockAccumulated Other Comprehensive LossTotal Stockholders' Equity
Balances at July 31, 2020$548 $331,761 $704,456 $(107,216)$(66,477)$863,072 
Net income— — 64,341 — — 64,341 
Other comprehensive income, net of tax— — — — 15,016 15,016 
Issuance of shares of Class A Common Stock under stock plan— (3,187)— 1,020 — (2,167)
Tax benefit and withholdings from deferred compensation distributions— 32 — — — 32 
Stock-based compensation expense— 5,471 — — — 5,471 
Repurchase of shares of Class A Common Stock— — — (3,593)— (3,593)
Cash dividends on Common Stock:
Class A — $0.4400 per share— — (21,338)— — (21,338)
Class B — $0.4234 per share— — (1,499)— — (1,499)
Balances at January 31, 2021$548 $334,077 $745,960 $(109,789)$(51,461)$919,335 
The following table illustrates the changes in the balances of each component of stockholders' equity for the three months ended January 31, 2020:
Common StockAdditional
Paid-In Capital
Retained EarningsTreasury StockAccumulated Other Comprehensive LossTotal Stockholders' Equity
Balances at October 31, 2019$548 $327,241 $663,808 $(43,779)$(71,283)$876,535 
Net income— — 33,553 — — 33,553 
Other comprehensive loss, net of tax— — — — (1,207)(1,207)
Issuance of shares of Class A Common Stock under stock plan— 187 — 624 — 811 
Tax benefit and withholdings from deferred compensation distributions— 69 — — — 69 
Stock-based compensation expense— 1,766 — — — 1,766 
Cash dividends on Common Stock:
Class A — $0.2175 per share— — (10,833)— — (10,833)
Class B — $0.2175 per share— — (770)— — (770)
Balances at January 31, 2020$548 $329,263 $685,758 $(43,155)$(72,490)$899,924 

The following table illustrates the changes in the balances of each component of stockholders' equity for the six months ended January 31, 2020:
Common StockAdditional
Paid-In Capital
Retained EarningsTreasury StockAccumulated Other Comprehensive LossTotal Stockholders' Equity
Balances at July 31, 2019$548 $329,969 $637,843 $(46,332)$(71,254)$850,774 
Net income— — 71,051 — — 71,051 
Other comprehensive loss, net of tax— — — — (1,236)(1,236)
Issuance of shares of Class A Common Stock under stock plan— (6,223)— 3,177 — (3,046)
Tax benefit and withholdings from deferred compensation distributions— 133 — — — 133 
Stock-based compensation expense— 5,384 — — — 5,384 
Cash dividends on Common Stock:
Class A — $0.4350 per share— — (21,655)— — (21,655)
Class B — $0.4184 per share— — (1,481)— — (1,481)
Balances at January 31, 2020$548 $329,263 $685,758 $(43,155)$(72,490)$899,924