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Acquisition Level 1 (Notes)
 6 Months Ended
Jun. 30, 2021
Business Combinations [Abstract]  
Business Combination Disclosure [Text Block]
Acquisitions
We spent $3.6 million and $26.3 million, net of cash acquired, for several business acquisitions, and $10.5 million and $32.8 million, net of cash acquired, for several real estate acquisitions during the six months ended June 30, 2021 and 2020, respectively.
Divestiture-Related Activities
As divestitures occur in the normal course of business, gains or losses on the sale of such locations are recognized in the unaudited Condensed Consolidated Statement of Operations line item Gains on divestitures and impairment charges, net, which comprised the following:
Three months ended June 30,Six months ended June 30,
2021202020212020
 (In thousands)
Gains on divestitures, net$6,267 $737 $7,593 $8,366 
Impairment losses(105)— (165)(3,084)
Gains on divestitures and impairment charges, net$6,162 $737 $7,428 $5,282