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Fair Value Measurements - Schedule of Impaired Long-lived Assets Carrying Value and Fair Value (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impairment Charge | $ 5.7 |  | $ 9.4 |
Significant unobservable inputs (Level 3) | Nonrecurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Carrying Value Prior to Impairment | 10.8 | $ 18.0 | 17.6 | $ 18.0
Fair Value | 3.8 | 1.7 | 6.3 | 1.7
Impairment Charge | 7.0 | 16.3 | 11.3 | 16.3
Fixed Assets | Significant unobservable inputs (Level 3) | Nonrecurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Carrying Value Prior to Impairment | 8.8 | 13.4 | 14.2 | 13.4
Fair Value | 3.1 | 1.5 | 4.8 | 1.5
Impairment Charge | 5.7 | 11.9 | 9.4 | 11.9
Leasing rights | Lease Rights | Significant unobservable inputs (Level 3) | Nonrecurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Carrying Value Prior to Impairment | 2.0 | 3.6 | 3.4 | 3.6
Fair Value | 0.7 | 0.2 | 1.5 | 0.2
Impairment Charge | $ 1.3 | 3.4 | $ 1.9 | 3.4
Customer relationships | Lease Rights | Significant unobservable inputs (Level 3) | Nonrecurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Carrying Value Prior to Impairment |  | 1.0 |  | 1.0
Fair Value |  | 0.0 |  | 0.0
Impairment Charge |  | $ 1.0 |  | $ 1.0

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