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GOODWILL
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL GOODWILL
Goodwill is recorded when the consideration paid for an acquisition of a business exceeds the fair value of identifiable net tangible and intangible assets acquired.

The change in carrying value of goodwill in the period was as follows (in thousands):

Balance at December 31, 2017$58,327  
Acquisitions completed during the year ended December 31, 2018203,378  
Balance at December 31, 2018261,705  
Acquisitions completed during the year ended December 31, 201910,832  
Sale of asset group (Note 8)(4,221) 
Other adjustments(1,971) 
Balance at December 31, 2019$266,345  


The Company performed its annual goodwill impairment test as of December 31, 2019. The Company determined that the business operations as a whole is represented by a single reporting unit and through qualitative analysis concluded that it was more likely than not that the fair value of the reporting unit was greater than its carrying amount. As a result, the two-step goodwill impairment test was not required, and no impairments of goodwill were recognized during the year ended December 31, 2019.