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ACQUISITIONS
12 Months Ended
Dec. 31, 2020
Business Combinations [Abstract]  
ACQUISITIONS ACQUISITIONS
Acquisitions
There were no acquisitions in the year ended December 31, 2020. During the years ended December 31, 2019 and 2018, the Company completed 1 and 21 acquisitions, respectively.  All of the acquisitions, which were primarily in the North America segment with revenues in the SID service line, are considered to be complementary to existing operations and fit with the Company’s growth strategy. All were accounted for as business combinations under the applicable guidance.
The results of operations of these acquired businesses have been included in the Consolidated Statements of Loss from the date of the acquisition.  Pro forma results of operations for these acquisitions are not presented because the pro forma effects, individually or in the aggregate, were not material to the Company’s consolidated results of operations.
The following table summarizes the acquisition date fair value of consideration transferred for acquisitions completed during the years ended December 31:
In millions
202020192018
Cash$— $0.2 $44.8 
Promissory notes— 0.3 30.0 
Deferred consideration— — 0.6 
Total purchase price$— $0.5 $75.4 
The fair value of consideration transferred in a business combination is allocated to the net tangible and identifiable intangible assets at the acquisition date, with the remaining unallocated amount recognized as goodwill.