Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	Apr. 01, 2018	Apr. 02, 2017	Jul. 22, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of deferred compensation plan assets	$ 16.9	$ 16.0
Fair value of convertible notes	422.0	376.9
Fair value of term loan	199.6
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent cash consideration		$ 1.3
Synkera Technologies, Inc.
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent cash consideration			$ 1.3
Synkera Technologies, Inc. | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent cash consideration	1.3
SpectraBeam | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent cash consideration	$ 4.1