Operating segments and geographic area data (Details 3) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Total consolidated assets
Total assets for reportable segments	$ 1,320,391	$ 997,363	$ 896,962
Customer advance payments	9,375	10,999	8,807
Eliminations	(25,316)	(22,008)	(15,095)
Total Assets	$ 1,304,450	$ 986,354	$ 890,674