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Increase decrease in earnings (loss) per share.

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Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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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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Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained.

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- Definition

Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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- Definition

Amount, before accumulated amortization, of capitalized implementation cost from hosting arrangement that is service contract.

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- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Restricted cash	$ 8,800,000	$ 9,500,000	$ 1,400,000
Restricted cash, current	1,200,000	2,000,000
Restricted cash, non current	$ 7,600,000	7,500,000
Lease extension term	10 years
Unamortized internal-use technology costs	$ 4,600,000	7,100,000
Revenue increase (decrease) due to changes in estimated transaction price due to contractual adjustments	7,200,000	22,100,000	15,900,000
Revenue recognized due to expanded local coverage determination for which revenue was previously constrained			$ 6,800,000
Capitalized costs incurred to obtain or fulfill contract	0
Foreign currency transaction (loss) gain	$ (3,400,000)	$ 200,000
Minimum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Remaining lease terms	1 year
Maximum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Remaining lease terms	15 years
Performance Obligation Estimate
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Change in earnings (loss) per share (in dollars per share)	$ 0.07	$ 0.21	$ 0.15
Internal-use software
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Unamortized software costs	$ 11,900,000
Equipment \| Minimum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Estimated useful lives (in years)	5 years
Equipment \| Maximum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Estimated useful lives (in years)	7 years
Leasehold improvements \| Minimum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Estimated useful lives (in years)	1 year
Leasehold improvements \| Maximum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Estimated useful lives (in years)	15 years
Government Contracts Concentration Risk \| Medicare \| Revenue
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Concentration risk (in percent)	12.00%	14.00%	17.00%
Medicare \| Medicare \| Accounts Receivable
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Concentration risk (in percent)	12.00%