Summary of Significant Accounting Policies Concentration Risk (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 30, 2019 |
Jun. 29, 2019 |
Jun. 30, 2018 |
|
| Concentration Risk [Line Items] | |||
| Income Tax Effects Allocated Directly to Equity, Prior Period Adjustment | $ 2.5 | ||
| Customer Three [Domain] | Accounts receivable [Member] | |||
| Concentration Risk [Line Items] | |||
| Concentration Risk | 10.00% | ||
| Customer Three [Domain] | Sales Revenue, Net [Member] | |||
| Concentration Risk [Line Items] | |||
| Concentration Risk | 10.00% | 10.00% | |
| Customer Four [Domain] [Domain] | Accounts receivable [Member] | |||
| Concentration Risk [Line Items] | |||
| Concentration Risk | 11.00% | 13.00% | |