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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) | 12 Months Ended |
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Dec. 31, 2022 USD ($) operating_segment systemOption performanceObligation reporting_unit | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Jan. 01, 2023 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of operating segments | operating_segment | 1 |  |  |
Impairment charges | $ 0 | $ 0 | $ 0 |
Number of reporting unit | reporting_unit | 1 |  |  |
Long-lived asset impairment charges | $ 23,200,000 |  |  |
Number of Zio System options | systemOption | 3 |  |  |
Number of performance obligations | performanceObligation | 2 |  |  |
Unrecognized tax benefit income tax interest and penalty charges | $ 0 |  |  |
Internal-use software |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Internal-use software, estimated useful life (in years) | 3 years |  |  |
Federal Government Agencies | Revenue | Customer Concentration Risk |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Concentration of credit risk (as a percent) | 25.00% | 14.00% | 27.00% |
Federal Government Agencies | Accounts Receivable | Accounts Receivable Concentration Risk |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Concentration of credit risk (as a percent) | 22.00% | 8.00% |  |
Minimum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Property and equipment, estimated useful life (in years) | 3 years |  |  |
Maximum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Property and equipment, estimated useful life (in years) | 5 years |  |  |
Product And Services Zio X T Service Code93243 | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Reimbursement rate |  |  |  | $ 231.79
Product And Services Zio X T Service Code93243 | Minimum | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Estimated reimbursement rate |  |  |  | 235.54
Product And Services Zio X T Service Code93243 | Maximum | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Estimated reimbursement rate |  |  |  | 318.17
Product And Services Zio X T Service Code93247 | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Reimbursement rate |  |  |  | 243.65
Product And Services Zio X T Service Code93247 | Minimum | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Estimated reimbursement rate |  |  |  | 247.59
Product And Services Zio X T Service Code93247 | Maximum | Subsequent Event |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Estimated reimbursement rate |  |  |  | $ 334.46

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599 + Details
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