INTANGIBLE ASSETS AND GOODWILL - Schedule of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 177,713
Goodwill acquired	20,170
Goodwill, ending balance	197,883
Operating Segments | Acute Care EHR
Goodwill [Roll Forward]
Goodwill, beginning balance	97,095
Goodwill acquired	0
Goodwill, ending balance	97,095
Operating Segments | Post-acute Care EHR
Goodwill [Roll Forward]
Goodwill, beginning balance	29,570
Goodwill acquired	0
Goodwill, ending balance	29,570
Operating Segments | TruBridge
Goodwill [Roll Forward]
Goodwill, beginning balance	51,048
Goodwill acquired	20,170
Goodwill, ending balance	$ 71,218