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Summary of Significant Accounting Policies - Revenue by Major Payers (Details) - Customer Concentration Risk	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Medicare | Revenue
Disaggregation of Revenue [Line Items]
Percent of total revenue	29.00%	39.00%
Medicare | Accounts Receivable, Net
Disaggregation of Revenue [Line Items]
Percent of total revenue	33.00%		42.00%
Medicare Advantage | Revenue
Disaggregation of Revenue [Line Items]
Percent of total revenue	17.00%	16.00%
Medicare Advantage | Accounts Receivable, Net
Disaggregation of Revenue [Line Items]
Percent of total revenue	23.00%		16.00%
United Healthcare | Revenue
Disaggregation of Revenue [Line Items]
Percent of total revenue	10.00%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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