REVENUE (Tables)

3 Months Ended

Mar. 31, 2022

Disaggregation of Revenue [Line Items]

Financing Receivable, Allowance for Credit Loss [Table Text Block]

The rollforward for the allowance for credit losses for the three months ended March 31, 2022 is as follows:

	Accounts Receivable		Unbilled Services		Note and Other Receivables		Total
Balance as of December 31, 2021	$	21.5	$	13.9	$	0.7	$	36.1
Plus, credit loss expense	(0.4)		—		—		(0.4)
Less, write offs	1.7		0.7		—		2.4
Balance as of March 31, 2022	$	19.4	$	13.2	$	0.7	$	33.3

Contract with Customer, Asset and Liability [Table Text Block]

	March 31, 2022		December 31, 2021
Dx accounts receivable	$	1,155.2	$	1,193.8
DD accounts receivable	1,103.8		1,089.2
Less DD allowance for doubtful accounts	(19.4)		(21.5)
Accounts receivable	$	2,239.6	$	2,261.5
Gross unbilled services	$	813.2	$	730.8
Less reserve for unbilled services	(13.2)		(14.0)
Unbilled services	$	800.0	$	716.8
Unearned revenue	$	556.0	$	558.5

Disaggregation of Revenue [Table Text Block]

The Company's revenues by segment and by payers/customer groups for the three months ended March 31, 2022, and 2021, were as follows:

	For the Three Months Ended March 31, 2022								For the Three Months Ended March 31, 2021
	North America		Europe		Other		Total		North America		Europe		Other		Total
Payer/Customer
Dx
Clients	17	%	—	%	—	%	17	%	19	%	—	%	—	%	19	%
Patients	5	%	—	%	—	%	5	%	5	%	—	%	—	%	5	%
Medicare and Medicaid	6	%	—	%	—	%	6	%	7	%	—	%	—	%	7	%
Third party	35	%	—	%	—	%	35	%	34	%	—	%	—	%	34	%
Total Dx revenues by payer	63	%	—	%	—	%	63	%	65	%	—	%	—	%	65	%
DD
Pharmaceutical, biotechnology and medical device companies	17	%	13	%	7	%	37	%	21	%	10	%	4	%	35	%
Total revenues	80	%	13	%	7	%	100	%	86	%	10	%	4	%	100	%

Revenues in the U.S. were $3,000.5 (76.9%) and $3,472.5 (83.4%) for the three months ended March 31, 2022, and 2021, respectively.

DD Contract costs

Capitalized Contract Cost [Table Text Block]

	March 31, 2022		December 31, 2021
Sales commission assets	$	38.8	$	36.2
Deferred contract fulfillment costs	14.9		14.4
Total	$	53.7	$	50.6