Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||||
---|---|---|---|---|---|---|---|
Nov. 02, 2018 |
Feb. 28, 2017 |
Mar. 30, 2019 |
Dec. 29, 2018 |
Mar. 31, 2018 |
Mar. 30, 2019 |
Mar. 31, 2018 |
|
Business Acquisition [Line Items] | |||||||
Embedded derivative liability fair value | $ 43.6 | ||||||
Conversion of preferred stock to common stock | $ 79.4 | ||||||
Impairment charge | $ 30.7 | $ 0.0 | $ 30.7 | $ 0.0 | |||
Private Company Acquisition | |||||||
Business Acquisition [Line Items] | |||||||
Total consideration | $ 8.7 | ||||||
Estimated likelihood of achieving production targets | 90.00% | ||||||
Contingent consideration, cash payment that could result if production targets achieved | $ 3.0 | ||||||
Period following acquisition date | 12 months | ||||||
Additional paid-in capital | |||||||
Business Acquisition [Line Items] | |||||||
Conversion of preferred stock to common stock | $ 79.4 | $ 79.4 | 79.4 | ||||
Convertible Debt | Level 2 | |||||||
Business Acquisition [Line Items] | |||||||
Convertible senior notes fair value | $ 529.8 | $ 529.8 |