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Condensed Consolidating Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
May 01, 2015
Oct. 31, 2014
May 02, 2014
Oct. 25, 2013
Current Assets        
Cash and cash equivalents $ 172,645us-gaap_CashAndCashEquivalentsAtCarryingValue $ 238,144us-gaap_CashAndCashEquivalentsAtCarryingValue $ 207,443us-gaap_CashAndCashEquivalentsAtCarryingValue $ 179,178us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable, net 384,662us-gaap_AccountsReceivableNetCurrent 379,889us-gaap_AccountsReceivableNetCurrent    
Inventories 479,588us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings 433,595us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings    
Income tax refundable 9,394us-gaap_IncomeTaxesReceivable 5,266us-gaap_IncomeTaxesReceivable    
Deferred income tax benefits 52,524us-gaap_DeferredTaxAssetsNetCurrent 48,679us-gaap_DeferredTaxAssetsNetCurrent    
Prepaid expenses 23,892us-gaap_PrepaidExpenseCurrent 20,336us-gaap_PrepaidExpenseCurrent    
Other current assets 3,600us-gaap_OtherAssetsCurrent 2,149us-gaap_OtherAssetsCurrent    
Current assets of businesses held for sale 40,399us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent 41,446us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent    
Total Current Assets 1,166,704us-gaap_AssetsCurrent 1,169,504us-gaap_AssetsCurrent    
Property, Plant & Equipment, Net 306,598us-gaap_PropertyPlantAndEquipmentNet 319,342us-gaap_PropertyPlantAndEquipmentNet    
Goodwill 1,074,437us-gaap_Goodwill 1,071,786us-gaap_Goodwill    
Intangibles, net 475,931us-gaap_IntangibleAssetsNetExcludingGoodwill 471,377us-gaap_IntangibleAssetsNetExcludingGoodwill    
Debt issuance costs, net 11,162us-gaap_UnamortizedDebtIssuanceExpense 4,295us-gaap_UnamortizedDebtIssuanceExpense    
Deferred income tax benefits 62,759us-gaap_DeferredTaxAssetsNetNoncurrent 71,307us-gaap_DeferredTaxAssetsNetNoncurrent    
Other assets 21,825us-gaap_OtherAssetsNoncurrent 14,179us-gaap_OtherAssetsNoncurrent    
Non-current assets of businesses held for sale 56,952us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent 71,677us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent    
Amounts Due From (To) Subsidiaries 0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent 0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent    
Investment in Subsidiaries 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures    
Total Assets 3,176,368us-gaap_Assets 3,193,467us-gaap_Assets    
Current Liabilities        
Accounts payable 123,448us-gaap_AccountsPayableCurrent 115,284us-gaap_AccountsPayableCurrent    
Accrued liabilities 264,493us-gaap_AccruedLiabilitiesCurrent 262,536us-gaap_AccruedLiabilitiesCurrent    
Current maturities of long-term debt 1,002us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent 12,774us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent    
Deferred income tax liabilities 2,851us-gaap_DeferredTaxLiabilitiesCurrent 1,773us-gaap_DeferredTaxLiabilitiesCurrent    
Federal and foreign income taxes 1,617us-gaap_AccruedIncomeTaxesCurrent 1,571us-gaap_AccruedIncomeTaxesCurrent    
Current liabilities of businesses held for sale 14,181us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent 14,191us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent    
Total Current Liabilities 407,592us-gaap_LiabilitiesCurrent 408,129us-gaap_LiabilitiesCurrent    
Credit facilities 120,000us-gaap_LongTermLineOfCredit 100,000us-gaap_LongTermLineOfCredit    
Long-Term Debt, Net 722,954us-gaap_LongTermDebtAndCapitalLeaseObligations 509,720us-gaap_LongTermDebtAndCapitalLeaseObligations    
Deferred Income Tax Liabilities 137,983us-gaap_DeferredTaxLiabilitiesNoncurrent 149,165us-gaap_DeferredTaxLiabilitiesNoncurrent    
Pension and Post-Retirement Obligations 57,968us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent 62,693us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent    
Other Liabilities 29,958us-gaap_OtherLiabilitiesNoncurrent 46,884us-gaap_OtherLiabilitiesNoncurrent    
Non-current liabilities of businesses held for sale 19,427us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent 18,876us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent    
Amounts Due To (From) Subsidiaries 0us-gaap_DueToRelatedPartiesNoncurrent 0us-gaap_DueToRelatedPartiesNoncurrent    
Shareholders' Equity 1,680,486us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 1,898,000us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest    
Total Liabilities and Shareholders' Equity 3,176,368us-gaap_LiabilitiesAndStockholdersEquity 3,193,467us-gaap_LiabilitiesAndStockholdersEquity    
Parent Company        
Current Assets        
Cash and cash equivalents 23,591us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
14,634us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
9,577us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
7,826us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Accounts receivable, net 69us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
610us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Inventories 0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Income tax refundable 0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred income tax benefits 31,918us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
31,486us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Prepaid expenses 185us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
147us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other current assets 74us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
80us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current assets of businesses held for sale 0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total Current Assets 55,837us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
46,957us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Property, Plant & Equipment, Net 1,397us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,489us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Goodwill 0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Intangibles, net 0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Debt issuance costs, net 5,447us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
4,134us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred income tax benefits 18,169us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
20,455us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other assets 276us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
130us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Non-current assets of businesses held for sale 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Amounts Due From (To) Subsidiaries 0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Investment in Subsidiaries 3,162,577us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,307,454us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total Assets 3,243,703us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,380,619us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current Liabilities        
Accounts payable 3,536us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,751us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accrued liabilities 16,247us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
20,178us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current maturities of long-term debt 0us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
8,750us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred income tax liabilities 558us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
76us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Federal and foreign income taxes (1,946)us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(2,282)us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total Current Liabilities 18,395us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
28,473us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Credit facilities 90,000us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
100,000us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Long-Term Debt, Net 250,000us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
403,125us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred Income Tax Liabilities 57,654us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
58,615us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Pension and Post-Retirement Obligations 18,904us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
18,683us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other Liabilities 14,680us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
16,762us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Non-current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Amounts Due To (From) Subsidiaries 1,102,689us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
856,961us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Shareholders' Equity 1,691,381us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,898,000us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total Liabilities and Shareholders' Equity 3,243,703us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,380,619us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
TA Mfg. Ltd        
Current Assets        
Cash and cash equivalents 1,985us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
Accounts receivable, net 0us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Inventories 0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Income tax refundable 0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Deferred income tax benefits 0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Prepaid expenses 0us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Other current assets 0us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Current assets of businesses held for sale 0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Total Current Assets 1,985us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Property, Plant & Equipment, Net 0us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Goodwill 0us-gaap_Goodwill
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_Goodwill
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Intangibles, net 0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Debt issuance costs, net 5,715us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Deferred income tax benefits 0us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Other assets 0us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Non-current assets of businesses held for sale 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Amounts Due From (To) Subsidiaries 349,959us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Investment in Subsidiaries 642,929us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Total Assets 1,000,588us-gaap_Assets
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_Assets
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Current Liabilities        
Accounts payable 0us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Accrued liabilities 1,189us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Current maturities of long-term debt 0us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Deferred income tax liabilities 0us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Federal and foreign income taxes (2,621)us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Total Current Liabilities (1,432)us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Credit facilities 0us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Long-Term Debt, Net 369,567us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Deferred Income Tax Liabilities 0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Pension and Post-Retirement Obligations 0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Other Liabilities 0us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Non-current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Amounts Due To (From) Subsidiaries 0us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Shareholders' Equity 632,453us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Total Liabilities and Shareholders' Equity 1,000,588us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
0us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= esl_TAManufacturingLimitedMember
   
Guarantor Subsidiaries        
Current Assets        
Cash and cash equivalents 2,883us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
3,454us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
5,535us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
4,876us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Accounts receivable, net 142,018us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
143,158us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Inventories 193,498us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
188,982us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Income tax refundable 0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred income tax benefits (1,220)us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(1,191)us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Prepaid expenses 8,302us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
6,703us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other current assets 111us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
114us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current assets of businesses held for sale 25,400us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
26,800us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total Current Assets 370,992us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
368,020us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Property, Plant & Equipment, Net 160,832us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
158,089us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Goodwill 372,021us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
347,700us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Intangibles, net 101,998us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
106,164us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Debt issuance costs, net 0us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred income tax benefits 0us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
30us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other assets 41,394us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
7,502us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Non-current assets of businesses held for sale 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
40,737us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Amounts Due From (To) Subsidiaries 794,188us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
797,342us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Investment in Subsidiaries 1,009,042us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
1,127,237us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total Assets 2,850,467us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,952,821us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current Liabilities        
Accounts payable 36,820us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
36,905us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accrued liabilities 87,274us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
93,168us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current maturities of long-term debt 862us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
349us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred income tax liabilities 1us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
8us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Federal and foreign income taxes (3,898)us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(2,643)us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current liabilities of businesses held for sale 3,902us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
4,010us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total Current Liabilities 124,961us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
131,797us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Credit facilities 0us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Long-Term Debt, Net 57,184us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
55,176us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred Income Tax Liabilities (17,465)us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(17,333)us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Pension and Post-Retirement Obligations 862us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
1,226us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other Liabilities 194us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
3,944us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Non-current liabilities of businesses held for sale 17,740us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
17,327us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Amounts Due To (From) Subsidiaries 0us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Shareholders' Equity 2,666,991us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,760,684us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total Liabilities and Shareholders' Equity 2,850,467us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,952,821us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Non-Guarantor Subsidiaries        
Current Assets        
Cash and cash equivalents 144,186us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
220,056us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
192,331us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
166,476us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Accounts receivable, net 242,575us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
236,121us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Inventories 286,090us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
244,613us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Income tax refundable 9,394us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
5,266us-gaap_IncomeTaxesReceivable
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred income tax benefits 21,826us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
18,384us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Prepaid expenses 15,405us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
13,486us-gaap_PrepaidExpenseCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other current assets 3,415us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,955us-gaap_OtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current assets of businesses held for sale 14,999us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
14,646us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total Current Assets 737,890us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
754,527us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Property, Plant & Equipment, Net 144,369us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
159,764us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Goodwill 702,416us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
724,086us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Intangibles, net 373,933us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
365,213us-gaap_IntangibleAssetsNetExcludingGoodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Debt issuance costs, net 0us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
161us-gaap_UnamortizedDebtIssuanceExpense
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred income tax benefits 44,590us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
50,822us-gaap_DeferredTaxAssetsNetNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other assets (19,845)us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
6,547us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Non-current assets of businesses held for sale 56,952us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
30,940us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Amounts Due From (To) Subsidiaries 0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Investment in Subsidiaries 14,644us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
20,768us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total Assets 2,054,949us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
2,112,828us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current Liabilities        
Accounts payable 83,092us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
76,628us-gaap_AccountsPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accrued liabilities 159,783us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
149,190us-gaap_AccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current maturities of long-term debt 140us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
3,675us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred income tax liabilities 2,292us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,689us-gaap_DeferredTaxLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Federal and foreign income taxes 10,082us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
6,496us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current liabilities of businesses held for sale 10,279us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
10,181us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total Current Liabilities 265,668us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
247,859us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Credit facilities 30,000us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_LongTermLineOfCredit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Long-Term Debt, Net 46,203us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
51,419us-gaap_LongTermDebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred Income Tax Liabilities 97,794us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
107,883us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Pension and Post-Retirement Obligations 38,202us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
42,784us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other Liabilities 15,084us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
26,178us-gaap_OtherLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Non-current liabilities of businesses held for sale 1,687us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,549us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Amounts Due To (From) Subsidiaries 400,768us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
456,861us-gaap_DueToRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Shareholders' Equity 1,159,543us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,178,295us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total Liabilities and Shareholders' Equity 2,054,949us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
2,112,828us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Eliminations        
Current Assets        
Cash and cash equivalents 0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Accounts receivable, net 0us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Inventories 0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Income tax refundable 0us-gaap_IncomeTaxesReceivable
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncomeTaxesReceivable
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred income tax benefits 0us-gaap_DeferredTaxAssetsNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DeferredTaxAssetsNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Prepaid expenses 0us-gaap_PrepaidExpenseCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PrepaidExpenseCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other current assets 0us-gaap_OtherAssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_OtherAssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current assets of businesses held for sale 0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total Current Assets 0us-gaap_AssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Property, Plant & Equipment, Net 0us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Goodwill 0us-gaap_Goodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_Goodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Intangibles, net 0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Debt issuance costs, net 0us-gaap_UnamortizedDebtIssuanceExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_UnamortizedDebtIssuanceExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred income tax benefits 0us-gaap_DeferredTaxAssetsNetNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DeferredTaxAssetsNetNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other assets 0us-gaap_OtherAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_OtherAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Non-current assets of businesses held for sale 0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Amounts Due From (To) Subsidiaries (1,144,147)us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(797,342)us-gaap_RelatedPartyTransactionDueFromToRelatedPartyNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Investment in Subsidiaries (4,829,192)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(4,455,459)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total Assets (5,973,339)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(5,252,801)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current Liabilities        
Accounts payable 0us-gaap_AccountsPayableCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccountsPayableCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accrued liabilities 0us-gaap_AccruedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccruedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current maturities of long-term debt 0us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred income tax liabilities 0us-gaap_DeferredTaxLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DeferredTaxLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Federal and foreign income taxes 0us-gaap_AccruedIncomeTaxesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccruedIncomeTaxesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total Current Liabilities 0us-gaap_LiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
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Credit facilities 0us-gaap_LongTermLineOfCredit
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= us-gaap_ConsolidationEliminationsMember
0us-gaap_LongTermLineOfCredit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Long-Term Debt, Net 0us-gaap_LongTermDebtAndCapitalLeaseObligations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LongTermDebtAndCapitalLeaseObligations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred Income Tax Liabilities 0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Pension and Post-Retirement Obligations 0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
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0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
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Other Liabilities 0us-gaap_OtherLiabilitiesNoncurrent
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= us-gaap_ConsolidationEliminationsMember
0us-gaap_OtherLiabilitiesNoncurrent
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Non-current liabilities of businesses held for sale 0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Amounts Due To (From) Subsidiaries (1,503,457)us-gaap_DueToRelatedPartiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(1,313,822)us-gaap_DueToRelatedPartiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Shareholders' Equity (4,469,882)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(3,938,979)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total Liabilities and Shareholders' Equity $ (5,973,339)us-gaap_LiabilitiesAndStockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
$ (5,252,801)us-gaap_LiabilitiesAndStockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember