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Business Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2012
Segment Reporting Information [Line Items]      
Revenue, Net $ 878,744us-gaap_SalesRevenueNet $ 700,186us-gaap_SalesRevenueNet  
Long-Lived Assets 335,763us-gaap_NoncurrentAssets 225,174us-gaap_NoncurrentAssets  
Concentration Risk, Percentage   10.00%us-gaap_ConcentrationRiskPercentage1  
Reportable Geographical Components [Member] | Europe [Member]      
Segment Reporting Information [Line Items]      
Revenue, Net 49,060us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
 
Long-Lived Assets 44,151us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
0us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
 
Foreign Currency Transaction Gain (Loss), before Tax 109us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
0us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
 
Reportable Geographical Components [Member] | MEXICO      
Segment Reporting Information [Line Items]      
Revenue, Net 45,902us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
41,524us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
 
Long-Lived Assets 24,611us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
16,403us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
 
Foreign Currency Transaction Gain (Loss), before Tax   (111)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
(141)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_MX
Reportable Geographical Components [Member] | UNITED STATES      
Segment Reporting Information [Line Items]      
Revenue, Net 783,782us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
658,662us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
 
Long-Lived Assets $ 267,001us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
$ 208,771us-gaap_NoncurrentAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
 
Sales [Member] | Europe and Mexico [Member]      
Segment Reporting Information [Line Items]      
Concentration Risk, Percentage 10.80%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= shlo_EuropeandMexicoMember
5.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= shlo_EuropeandMexicoMember