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Fair Value Measurements - Schedule of Long-lived Assets on Nonrecurring (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2017 | Oct. 01, 2016 | Sep. 30, 2017 | Oct. 01, 2016
Asset Impairment Charges [Abstract] |  |  |  |
Impairment of property and equipment | $ 11.9 | $ 4.9 | $ 11.9 | $ 4.9
Asset impairment charges | 16.3 | 4.9 | 16.3 | 4.9
Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Asset Impairment Charges [Abstract] |  |  |  |
Impairment of property and equipment | 11.9 |  | 11.9 | 4.9
Asset impairment charges | 16.3 |  | 16.3 |
Lease Rights | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Asset Impairment Charges [Abstract] |  |  |  |
Impairment of intangible assets | 3.4 |  | 3.4 |
Customer relationships | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Asset Impairment Charges [Abstract] |  |  |  |
Impairment of intangible assets | 1.0 |  | 1.0 |
Carrying Value Prior to Impairment | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Property and equipment | 13.4 | 5.4 | 13.4 | 5.4
Long-lived Assets | 18.0 |  | 18.0 |
Carrying Value Prior to Impairment | Lease Rights | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Intangible assets | 3.6 |  | 3.6 |
Carrying Value Prior to Impairment | Customer relationships | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Intangible assets | 1.0 |  | 1.0 |
Fair Value | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Property and equipment | 1.5 | $ 0.5 | 1.5 | $ 0.5
Long-lived Assets | 1.7 |  | 1.7 |
Fair Value | Lease Rights | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Intangible assets | 0.2 |  | 0.2 |
Fair Value | Customer relationships | Nonrecurring | Significant unobservable inputs (Level 3) |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |
Intangible assets | $ 0.0 |  | $ 0.0 |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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