Business Combinations - Allocation of Purchase Price (Details) - USD ($) $ in Thousands	3 Months Ended		4 Months Ended	5 Months Ended	6 Months Ended	8 Months Ended	9 Months Ended	10 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2021	Jun. 09, 2021	Apr. 27, 2021	Mar. 26, 2021	Jan. 25, 2021	Dec. 31, 2020	Nov. 20, 2020
Business Acquisition [Line Items]
Goodwill	$ 581,814		$ 581,814	$ 581,814	$ 581,814	$ 581,814	$ 581,814	$ 581,814					$ 164,194
Thrasys
Business Acquisition [Line Items]
Accounts receivable	3,491		3,491	3,491	3,491	3,491	3,491	3,491						$ 3,491
Prepaid expenses and other	3,001		3,001	3,001	3,001	3,001	3,001	3,001						3,001
Identifiable intangible assets	27,875		27,875	27,875	27,875	27,875	27,875	27,875						27,875
Property and equipment	101		101	101	101	101	101	101						101
Other noncurrent assets, including long term advances	19		19	19	19	19	19	19						19
Goodwill	145,036		145,036	145,036	145,036	145,036	145,036	145,036						148,088
Total assets acquired	179,523		179,523	179,523	179,523	179,523	179,523	179,523						182,575
Accounts payable	1,779		1,779	1,779	1,779	1,779	1,779	1,779						1,779
Accrued expenses and other current liabilities	5,322		5,322	5,322	5,322	5,322	5,322	5,322						5,322
Debt	430		430	430	430	430	430	430						961
Deferred tax liabilities	6,378		6,378	6,378	6,378	6,378	6,378	6,378						6,378
Deferred revenue	700		700	700	700	700	700	700						700
Total liabilities assumed	14,609		14,609	14,609	14,609	14,609	14,609	14,609						15,140
Net assets acquired	164,914		164,914	164,914	164,914	164,914	164,914	164,914						167,435
Measurement Period Adjustments
Goodwill							(3,052)	(3,052)
Debt								(531)
Total liabilities assumed								(531)
Measurement Period Adjustments		$ (2,500)						(2,521)
BHS
Business Acquisition [Line Items]
Accounts receivable	1,257		1,257	1,257	1,257	1,257	1,257	1,257						1,257
Inventories	100		100	100	100	100	100	100						100
Prepaid expenses and other	40		40	40	40	40	40	40						40
Identifiable intangible assets	225		225	225	225	225	225	225						225
Property and equipment	53		53	53	53	53	53	53						53
Other noncurrent assets, including long term advances	4		4	4	4	4	4	4						4
Deferred tax assets	19		19	19	19	19	19	19						19
Goodwill	15,339		15,339	15,339	15,339	15,339	15,339	15,339						16,106
Total assets acquired	17,037		17,037	17,037	17,037	17,037	17,037	17,037						17,804
Accounts payable	374		374	374	374	374	374	374						374
Accrued expenses and other current liabilities	847		847	847	847	847	847	847						426
Debt	229		229	229	229	229	229	229						1,234
Total liabilities assumed	1,450		1,450	1,450	1,450	1,450	1,450	1,450						2,034
Net assets acquired	15,587		15,587	15,587	15,587	15,587	15,587	15,587						$ 15,770
Measurement Period Adjustments
Goodwill							(767)	(767)
Accrued expenses and other current liabilities		400						421
Debt								(1,005)
Total liabilities assumed								(584)
Measurement Period Adjustments		(200)						(183)
TTC
Business Acquisition [Line Items]
Accounts receivable	1,773		1,773	1,773	1,773	1,773	1,773	1,773				$ 1,773
Prepaid expenses and other	187		187	187	187	187	187	187				187
Identifiable intangible assets	1,125		1,125	1,125	1,125	1,125	1,125	1,125				1,125
Property and equipment	531		531	531	531	531	531	531				531
Other noncurrent assets, including long term advances	281		281	281	281	281	281	281				281
Goodwill	57,921		57,921	57,921	57,921	57,921	57,921	57,921				57,574
Total assets acquired	61,818		61,818	61,818	61,818	61,818	61,818	61,818				61,471
Accounts payable	625		625	625	625	625	625	625				625
Accrued expenses and other current liabilities	602		602	602	602	602	602	602				602
Due to related parties	4,200		4,200	4,200	4,200	4,200	4,200	4,200				1,393
Debt	11,217		11,217	11,217	11,217	11,217	11,217	11,217				12,500
Deferred tax liabilities	474		474	474	474	474	474	474				474
Total liabilities assumed	17,118		17,118	17,118	17,118	17,118	17,118	17,118				15,594
Net assets acquired	44,700		44,700	44,700	44,700	44,700	44,700	44,700				$ 45,877
Measurement Period Adjustments
Goodwill						347	347
Due to related parties		2,800				2,807
Debt						(1,283)
Total liabilities assumed						1,524
Measurement Period Adjustments						(1,177)
Glocal
Business Acquisition [Line Items]
Accounts receivable	4,461		4,461	4,461	4,461	4,461	4,461	4,461			$ 6,461
Inventories	326		326	326	326	326	326	326			326
Identifiable intangible assets	38,039		38,039	38,039	38,039	38,039	38,039	38,039			38,039
Property and equipment	40,726		40,726	40,726	40,726	40,726	40,726	40,726			40,726
Other current assets, including short term advances	1,980		1,980	1,980	1,980	1,980	1,980	1,980			1,980
Other noncurrent assets, including long term advances	509		509	509	509	509	509	509			509
Goodwill	109,872		109,872	109,872	109,872	109,872	109,872	109,872			91,871
Total assets acquired	195,913		195,913	195,913	195,913	195,913	195,913	195,913			179,912
Accounts payable	579		579	579	579	579	579	579			579
Accrued expenses and other current liabilities	8,271		8,271	8,271	8,271	8,271	8,271	8,271			8,271
Debt	34,171		34,171	34,171	34,171	34,171	34,171	34,171			22,212
Deferred tax liabilities	9,890		9,890	9,890	9,890	9,890	9,890	9,890			0
Noncontrolling interest	17,389		17,389	17,389	17,389	17,389	17,389	17,389			17,389
Total liabilities assumed and noncontrolling interest	70,300		70,300	70,300	70,300	70,300	70,300	70,300			48,451
Net assets acquired	125,613		125,613	125,613	125,613	125,613	125,613	125,613			$ 131,461
Measurement Period Adjustments
Accounts receivable, net	(2,000)				(2,000)
Goodwill					18,001		18,001
Total assets acquired					16,001
Deferred tax liability		9,900			9,890
Debt	12,000				11,959
Total liabilities assumed and noncontrolling interest					21,849
Measurement Period Adjustments		$ (5,800)			(5,848)
Innovations Group
Business Acquisition [Line Items]
Accounts receivable	47		47	47	47	47	47	47		$ 47
Inventories	2,693		2,693	2,693	2,693	2,693	2,693	2,693		2,693
Prepaid expenses and other	530		530	530	530	530	530	530		530
Identifiable intangible assets	28,325		28,325	28,325	28,325	28,325	28,325	28,325		28,325
Property and equipment	7,937		7,937	7,937	7,937	7,937	7,937	7,937		7,937
Other noncurrent assets, including long term advances	22		22	22	22	22	22	22		22
Goodwill	144,264		144,264	144,264	144,264	144,264	144,264	144,264		143,730
Total assets acquired	183,818		183,818	183,818	183,818	183,818	183,818	183,818		183,284
Accounts payable	472		472	472	472	472	472	472		472
Accrued expenses and other current liabilities	780		780	780	780	780	780	780		780
Debt	4,069		4,069	4,069	4,069	4,069	4,069	4,069		4,069
Deferred tax liabilities	7,837		7,837	7,837	7,837	7,837	7,837	7,837		7,837
Deferred revenue	302		302	302	302	302	302	302		302
Noncontrolling interest	534		534	534	534	534	534	534		0
Total liabilities assumed and noncontrolling interest	13,994		13,994	13,994	13,994	13,994	13,994	13,994		13,460
Net assets acquired	169,824		169,824	169,824	169,824	169,824	169,824	169,824		$ 169,824
Measurement Period Adjustments
Goodwill				534			534
Noncontrolling interests	500			534
Measurement Period Adjustments				0
Cloudbreak
Business Acquisition [Line Items]
Accounts receivable	4,810		4,810	4,810	4,810	4,810	4,810	4,810	$ 4,810
Prepaid expenses and other	921		921	921	921	921	921	921	921
Identifiable intangible assets	32,475		32,475	32,475	32,475	32,475	32,475	32,475	32,475
Property and equipment	6,882		6,882	6,882	6,882	6,882	6,882	6,882	6,882
Other noncurrent assets, including long term advances	1,042		1,042	1,042	1,042	1,042	1,042	1,042	1,042
Goodwill	111,363		111,363	111,363	111,363	111,363	111,363	111,363	110,968
Total assets acquired	157,493		157,493	157,493	157,493	157,493	157,493	157,493	157,098
Accounts payable	2,518		2,518	2,518	2,518	2,518	2,518	2,518	2,518
Accrued expenses and other current liabilities	987		987	987	987	987	987	987	905
Debt	3,752		3,752	3,752	3,752	3,752	3,752	3,752	3,752
Deferred tax liabilities	7,906		7,906	7,906	7,906	7,906	7,906	7,906	7,906
Deferred revenue	15		15	15	15	15	15	15	15
Other long-term liabilities	300		300	300	300	300	300	300	0
Total liabilities assumed	15,478		15,478	15,478	15,478	15,478	15,478	15,478	15,096
Net assets acquired	142,015		142,015	$ 142,015	$ 142,015	$ 142,015	142,015	$ 142,015	$ 142,002
Measurement Period Adjustments
Goodwill			395				$ 395
Accrued expenses and other current liabilities			82
Other long-term liabilities			300
Total liabilities assumed	400		382
Measurement Period Adjustments	$ 13		$ 13