Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Apr. 30, 2011	Oct. 31, 2010
Current assets
Cash and cash equivalents	$ 23,290	$ 39,446
Trade accounts receivable, net of allowances of $17,606 and $10,672 at April 30, 2011 and October 31, 2010, respectively	555,940	450,513
Prepaid income taxes	2,211	1,498
Current assets of discontinued operations	3,445	4,260
Prepaid expenses	47,038	41,306
Notes receivable and other	33,686	20,402
Deferred income taxes, net	45,217	46,193
Insurance recoverables	5,138	5,138
Total current assets	715,965	608,756
Non-current assets of discontinued operations	464	1,392
Insurance deposits	35,903	36,164
Other investments and long-term receivables	3,736	4,445
Deferred income taxes, net	45,209	51,068
Insurance recoverables	72,006	70,960
Other assets	67,051	37,869
Investments in auction rate securities	15,503	20,171
Investment in unconsolidated affiliates, net	15,705	0
Property, plant and equipment, net of accumulated depreciation of $107,642 and $98,884 at April 30, 2011 and October 31, 2010, respectively	62,346	58,088
Other intangible assets, net of accumulated amortization of $66,038 and $54,889 at April 30, 2011 and October 31, 2010, respectively	140,924	65,774
Goodwill	742,179	593,983
Total assets	1,916,991	1,548,670
Current liabilities
Trade accounts payable	127,197	78,928
Accrued liabilities
Compensation	94,974	89,063
Taxes - other than income	22,530	17,663
Insurance claims	76,438	77,101
Other	80,504	70,119
Income taxes payable	716	977
Total current liabilities	402,359	333,851
Income taxes payable	32,961	29,455
Line of credit	396,000	140,500
Retirement plans and other	53,517	34,626
Insurance claims	271,897	271,213
Total liabilities	1,156,734	809,645
Stockholders' equity
Commitments and Contingencies
Preferred stock, $0.01 par value; 500,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 100,000,000 shares authorized; 53,119,489 and 52,635,343 shares issued at April 30, 2011 and October 31, 2010, respectively	531	526
Additional paid-in capital	204,613	192,418
Accumulated other comprehensive loss, net of taxes	(708)	(1,863)
Retained earnings	555,821	547,944
Total stockholders' equity	760,257	739,025
Total liabilities and stockholders' equity	$ 1,916,991	$ 1,548,670