Finance Lease ROU (Summary of Finance Lease ROU) (Details) - USD ($) $ in Thousands |
Sep. 30, 2021 |
Jun. 30, 2021 |
Sep. 30, 2020 |
|---|---|---|---|
| Finance Lease, Right Of Use Asset, Disclosure [Line Items] | |||
| ROU, gross | $ 33,635 | $ 33,635 | |
| Accumulated amortization | (7,940) | (7,524) | |
| Net finance lease ROU | 25,695 | 26,111 | $ 27,201 |
| Facility [Member] | |||
| Finance Lease, Right Of Use Asset, Disclosure [Line Items] | |||
| ROU, gross | 25,907 | 25,907 | |
| Equipment [Member] | |||
| Finance Lease, Right Of Use Asset, Disclosure [Line Items] | |||
| ROU, gross | $ 7,728 | $ 7,728 |