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Asset Impairments (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
Asset Impairments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	May 29, 2021	Feb. 27, 2021	Nov. 28, 2020	May 29, 2021	Sep. 30, 2020
Inventory write-down			$ 30,091		$ 30,091
Prepaid purchase of PPE						$ 26,726
Impairment charge				$ 26,726
Loss recovery related to PPE prepayment impairments		$ 20,840
Subsequent Event [Member]
Proceeds from loss recovery	$ 20,840