Impact of COVID-19 - COVID-19 Relief Funding (Details) - USD ($)		3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 02, 2022	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2021	Sep. 28, 2020
Unusual Risk or Uncertainty [Line Items]
Long-term debt, gross		$ 376,000,000			$ 376,000,000				$ 423,000,000
Principal repayments on debt					189,000,000			$ 60,000,000
Interest paid					5,000,000			2,000,000
CARES Act credits		0	$ (87,000,000)		0			(223,000,000)
Mark to market adjustment on warrant		$ 0	2,000,000		$ 0			22,000,000
Employee retention credit			6,000,000					17,000,000
The Coronavirus Aid, Relief, and Economic Security Act | Consolidated Appropriations Act of 2021 - PSP 2
Unusual Risk or Uncertainty [Line Items]
Funding received							$ 161,000,000
Proceeds from Payroll Support Program grant								143,000,000
The American Rescue Plan Act | American Rescue Plan Act - PSP 3
Unusual Risk or Uncertainty [Line Items]
Funding received				$ 150,000,000
Proceeds from Payroll Support Program grant						$ 135,000,000
CARES Act credits			63,000,000					63,000,000
CARES Act Credit Agreement, Warrants
Unusual Risk or Uncertainty [Line Items]
Warrants to acquire common stock (in shares)										3,117,940
Exercise price of warrants (in dollars per share)										$ 6.95
Number of warrants exercised (in shares)		0			0
Line of Credit | CARES Credit Agreement
Unusual Risk or Uncertainty [Line Items]
Term loan amount										$ 574,000,000
Long-term debt, gross									$ 150,000,000
Principal repayments on debt	$ 150,000,000
Interest paid	$ 1,000,000
Unsecured Debt | Consolidated Appropriations Act of 2021 - PSP 2
Unusual Risk or Uncertainty [Line Items]
Unsecured low interest loan amount			$ 18,000,000					$ 18,000,000
Term of grant								10 years