Revenue Recognition - Summary of Revenue Disaggregated by Program (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended										12 Months Ended
	Dec. 31, 2021	[1]	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	[2]	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Line Items]
Revenue	$ 126,808		$ 126,289	$ 120,071	$ 108,085	$ 100,617		$ 95,481	$ 81,923	$ 159,692	$ 481,252	$ 437,714	$ 633,066
Well-Being Program
Disaggregation Of Revenue [Line Items]
Revenue												6,800
Wisely Well brand
Disaggregation Of Revenue [Line Items]
Revenue												$ 2,200

[1] Loss from continuing operations for the fourth quarter of 2021 includes an unrealized loss of $41.4 million related to the change in fair value of the Sharecare Equity Security and an unrealized gain of $1.9 million related to the de-designated swaps, each of which was recorded to other (income) expense, net. The income tax benefit that would have otherwise resulted from the unrealized loss of $41.4 million was fully offset by income tax expense due to an increase in the valuation allowance on deferred tax assets related to capital loss carryforwards; therefore, there was no net income tax benefit associated with this loss.  In addition, loss from continuing operations for the fourth quarter of 2021 includes a total of $0.5 million related to CEO transition costs, acquisition and integration costs, and project costs, which was primarily recorded to selling, general, and administrative expenses. Finally, the impact of potentially dilutive securities for the three months ended December 31, 2021 was not considered because the impact would be anti-dilutive.

[2] Income from continuing operations for the fourth quarter of 2020 includes strategic project costs, CEO transition costs, and acquisition and integration costs of $2.3 million, $1.0 million, and $0.6 million, respectively, each of which were primarily recorded to selling, general, and administrative expenses.