Business Segment Information Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 206,598	$ 166,059	$ 182,146	$ 145,383	$ 148,851	$ 142,021	$ 162,831	$ 132,371	$ 700,186	$ 586,074
Major Customer, Percentage									10.00%
Long-Lived Assets	225,174				121,263				225,174	121,263
Foreign Currency Transaction Gain (Loss), before Tax									(141)	49
Sales [Member] | General Motors [Member]
Segment Reporting Information [Line Items]
Major Customer, Percentage									20.90%
Sales [Member] | Chrysler [Member]
Segment Reporting Information [Line Items]
Major Customer, Percentage										15.60%
Sales [Member] | MEXICO
Segment Reporting Information [Line Items]
Major Customer, Percentage									6.10%	6.30%
Accounts Receivable [Member] | General Motors [Member]
Segment Reporting Information [Line Items]
Major Customer, Percentage									20.00%	18.20%
Accounts Receivable [Member] | Chrysler [Member]
Segment Reporting Information [Line Items]
Major Customer, Percentage									23.40%	23.20%
Reportable Geographical Components [Member] | MEXICO
Segment Reporting Information [Line Items]
Revenues									42,418	36,647
Long-Lived Assets	$ 16,403				$ 14,302				$ 16,403	$ 14,302