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Goodwill (Tables)
6 Months Ended
Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table presents changes in goodwill in the accompanying Consolidated Balance Sheet (in thousands):
December 31, 2020June 30, 2021
Goodwill at the beginning of the period$398,292 $392,978 
Net increase in goodwill related to acquisitions14,054 — 
Decrease in goodwill related to divestitures(5,736)(1,006)
Decrease in goodwill related to impairments(13,632)— 
Goodwill at the end of the period$392,978 $391,972