CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $)	Redeemable Noncontrolling Interests	Common Stock	Class A Common Stock	Capital in Excess of Par Value	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interests	Total
Balances at Oct. 31, 2009	$ 56,937,000	$ 104,000	$ 157,000	$ 224,625,000	$ (1,381,000)	$ 189,485,000	$ 77,668,000	$ 490,658,000
Comprehensive income:
Net income	7,134,000	0	0	0	0	39,296,000	6,034,000	45,330,000
Foreign currency translation adjustments	0	0	0	0	877,000	0	0	877,000
Total comprehensive income	7,134,000	0	0	0	877,000	39,296,000	6,034,000	46,207,000
Cash dividends	0	0	0	0	0	(3,546,000)	0	(3,546,000)
Five-for-four common stock split	0	26,000	40,000	(66,000)	0	(68,000)	0	(68,000)
Tax benefit from stock option exercises	0	0	0	951,000	0	0	0	951,000
Proceeds from stock option exercises	0	1,000	1,000	1,465,000	0	0	0	1,467,000
Stock option compensation expense	0	0	0	921,000	0	0	0	921,000
Acquisitions of noncontrolling interests	(795,000)	0	0	0	0	0	0	0
Distributions to noncontrolling interests	(7,184,000)	0	0	0	0	0	0	0
Redemptions of common stock related to stock option exercises	0	0	0	(681,000)	0	0	0	(681,000)
Adjustments to redemption amount of redeemable noncontrolling interests	(39,000)	0	0	0	0	39,000	0	39,000
Other	0	0	0	0	6,000	0	0	6,000
Balances at Jul. 31, 2010	56,053,000	131,000	198,000	227,215,000	(498,000)	225,206,000	83,702,000	535,954,000
Balances at Oct. 31, 2010	55,048,000	131,000	199,000	227,993,000	(124,000)	240,913,000	85,714,000	554,826,000
Comprehensive income:
Net income	8,507,000	0	0	0	0	54,306,000	8,228,000	62,534,000
Foreign currency translation adjustments	0	0	0	0	1,680,000	0	0	1,680,000
Total comprehensive income	8,507,000	0	0	0	1,680,000	54,306,000	8,228,000	64,214,000
Cash dividends	0	0	0	0	0	(4,494,000)	0	(4,494,000)
Five-for-four common stock split	0	33,000	50,000	(83,000)	0	(102,000)	0	(102,000)
Tax benefit from stock option exercises	0	0	0	7,704,000	0	0	0	7,704,000
Proceeds from stock option exercises	0	3,000	1,000	2,084,000	0	0	0	2,088,000
Stock option compensation expense	0	0	0	1,813,000	0	0	0	1,813,000
Acquisitions of noncontrolling interests	(7,241,000)	0	0	0	0	0	0	0
Distributions to noncontrolling interests	(6,328,000)	0	0	0	0	0	0	0
Redemptions of common stock related to stock option exercises	0	0	0	(5,432,000)	0	0	0	(5,432,000)
Noncontrolling interests assumed related to acquisition	5,612,000	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests	(1,619,000)	0	0	0	0	1,619,000	0	1,619,000
Other	0	0	0	(1,000)	0	0	1,000	0
Balances at Jul. 31, 2011	$ 53,979,000	$ 167,000	$ 250,000	$ 234,078,000	$ 1,556,000	$ 292,242,000	$ 93,943,000	$ 622,236,000