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Accounts Receivable and Revenue Recognition - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2018 | Oct. 01, 2017 | Oct. 02, 2016
Financial information concerning reportable segments |  |  |
Period for billing and collecting unbilled receivables | 12 months |  |
Period for earning majority of billings in excess of costs | 12 months |  |
Unbilled accounts receivable related to claims and requests for equitable adjustment on contracts | $ 74.0 | $ 59.0 |
Billed accounts receivable related to U.S. federal government contracts | 81.5 | 45.4 |
U.S. federal government unbilled receivables | 102.7 | 109.7 |
Net unfavorable operating income adjustments |  | 8.0 | $ 2.3
Liability for anticipated losses | 13.6 | 8.1 |
Estimated cost to complete the related contracts | 16.4 |  |
CIG |  |  |
Financial information concerning reportable segments |  |  |
Reduction in the revenue related to the evaluation of the claims | 10.6 |  |
Loss from claim settlement | 12.5 |  |
Net unfavorable operating income adjustments | $ 11.2 | 2.3 |
RCM |  |  |
Financial information concerning reportable segments |  |  |
Reduction in the revenue related to the evaluation of the claims |  | 4.9 |
Loss from claim settlement |  | 3.6 |
Net unfavorable operating income adjustments |  | $ 5.7 |

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- Definition Represents the period within which the majority of billings in excess of costs on uncompleted contracts will be earned. + References No definition available. + Details
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- Definition Contract Receivable Decrease In Revenue Related To Claims And Requests For Equitable Adjustment On Contract + References No definition available. + Details
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- Definition The amount of billed receivables that are derived from government contracts. + References No definition available. + Details
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- Definition Represents the unbilled accounts receivable related to claims and requests for equitable adjustment on contracts. + References No definition available. + Details
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- Definition Represents the amount of remaining estimated costs to complete the contracts. + References No definition available. + Details
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- Definition Represents the period within which substantially all unbilled receivables are expected to be billed and collected. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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- Definition Unbilled amounts (net of unliquidated progress payments) of government contract receivables. + References No definition available. + Details
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- Definition Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57777-111642 + Details
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