Discontinued Operations - Summary of Financial Results Included in Income (Loss) from Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Impairment loss				$ 199,500		$ 377,100
Write-off of deferred loan costs and debt discount	[1]			(8,946)
Income tax benefit			$ 844	46,851		59,881
Loss from discontinued operations, net of income tax benefit			(2,462)	(280,500)		(332,038)
Nutrisystem, Inc.
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenues				617,191	[2]	498,091	[3]
Cost of revenues				291,097	[2]	232,240	[3]
Marketing expenses				196,952	[2]	140,286	[3]
Selling, general and administrative expenses	[4]		3,210	59,093	[2]	56,840	[3]
Depreciation and amortization				35,957	[2]	43,638	[3]
Impairment loss		$ 199,500		199,500	[2]	377,100	[3]
Restructuring and related charges				472	[2]	5,143	[3]
Interest expense	[5]			36,798	[2]	34,763	[3]
Pretax loss from discontinued operations			(3,210)	(202,678)	[2]	(391,919)	[3]
Loss on de-designation of cash flow hedges	[2],[6]			(14,336)
Write-off of deferred loan costs and debt discount	[2],[5]			(8,946)
Loss on sale of Nutrition business	[7]		(96)	(101,391)	[2]
Total pretax loss from discontinued operations			(3,306)	(327,351)	[2]	(391,919)	[3]
Income tax benefit			(844)	(46,851)	[2]	(59,881)	[3]
Loss from discontinued operations, net of income tax benefit			$ (2,462)	$ (280,500)	[2]	$ (332,038)	[3]

[1] Reflected on the consolidated statement of cash flows in the line items “Amortization and write-off of deferred loan costs” and “Amortization and write-off of debt discount”.

[2] Results include the period from January 1, 2020 through December 8, 2020.

[3] Results include the period from March 8, 2019 (the date of acquisition) through December 31, 2019.

[4] For the year ended December 31, 2021, expenses from discontinued operations primarily relate to legal and other professional fees.

[5] The term loans under our Prior Credit Agreement (as defined in Note 10) were originated with the purchase of Nutrisystem on March 8, 2019. Following the disposition of Nutrisystem, we repaid $519.0 million of principal on the Term Loans under the terms of the Prior Credit Agreement. In conjunction with the partial debt prepayment, we wrote off a portion of the related deferred loan costs and original issue discount. We allocated interest expense to discontinued operations based on the interest expense incurred from March 8, 2019 through December 8, 2020 related to $519.0 million of term loan debt, using our historical interest rates.

[6] Represents loss recognized in the fourth quarter of 2020 in connection with the de-designation of cash flow hedging on interest rate swaps (see Note 14).

[7] For the year ended December 31, 2020, the loss on sale of business consists of impairment losses of $90.2 million related to Nutrisystem goodwill (see Note 13), which includes post-closing adjustments related to final