Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2020

Disaggregation of Revenue [Abstract]

Disaggregation of Revenue

Disaggregated revenue by payor type and major service line was as follows:

	Three Months Ended March 31, 2020
	Reporting Segment						Total Consolidated
(in thousands)	Healthcare		Research		Other
Payor/Service Line
Remote cardiac monitoring services - Medicare	$	40,128	$	—	$	—	$	40,128
Remote cardiac monitoring services - commercial payors	55,579		—		—		55,579
Clinical trial support and related services	—		13,820		—		13,820
Technology devices, consumables and related services	—		—		3,504		3,504
Total	$	95,707	$	13,820	$	3,504	$	113,031

	Three Months Ended March 31, 2019
	Reporting Segment						Total Consolidated
(in thousands)	Healthcare		Research		Other
Payor/Service Line
Remote cardiac monitoring services - Medicare	$	33,935	$	—	$	—	$	33,935
Remote cardiac monitoring services - commercial payors	54,074		—		—		54,074
Clinical trial support and related services	—		12,964		—		12,964
Technology devices, consumables and related services	—		—		3,006		3,006
Total	$	88,009	$	12,964	$	3,006	$	103,979

Disaggregation of Allowance for Credit Losses

Disaggregated allowance by portfolio was as follows:

	Three Months Ended March 31, 2020
	Portfolio				Total Consolidated
(in thousands)	Healthcare		Other
Beginning balance	$	31,780	$	201	$	31,981
Cumulative effect of change in accounting principle	—		347		347
Current period credit loss expense*	6,020		—		6,020
Write-offs	—		—		—
Recoveries collected	180		—		180
Ending Balance	$	37,980	$	548	$	38,528