BUSINESS ACQUISITIONS	3 Months Ended
Mar. 31, 2021
Business Combinations [Abstract]
BUSINESS ACQUISITIONS	BUSINESS ACQUISITIONS On March 6, 2021, the Company entered into a definitive agreement to acquire the outreach laboratory services business of Mercy Health, which serves providers and patients in Arkansas, Kansas, Missouri and Oklahoma. The transaction, which is expected to close in mid-2021, remains subject to customary closing conditions. For details regarding the Company's 2020 acquisitions, see Note 6 to the audited consolidated financial statements in the Company's 2020 Annual Report on Form 10-K.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-URI http://asc.fasb.org/topic&trid=2303972

Name:	us-gaap_BusinessCombinationDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration