Acquisitions and Divestures	6 Months Ended
Jun. 30, 2021
Business Combinations [Abstract]
Acquisitions and Divestures	4. ACQUISITIONS AND DIVESTURES We had no significant business acquisitions or divestures during the three and six months ended June 30, 2021 and 2020.

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