Business Combinations - Preliminary Allocation of the Purchase Price to the Assets Acquired and the Liabilities Assumed by the Company (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 29, 2021	Sep. 09, 2021
Business Acquisition [Line Items]
Goodwill		$ 738,900	$ 731,294
Measurement period adjustments			(4,041)
Purchase price adjustments from business acquisitions			5,484	$ 0
FDS Amplicare
Business Acquisition [Line Items]
Cash and cash equivalents						$ 465
Accounts receivable and unbilled receivables						5,330
Prepaid expenses						506
Other current assets						45
Total current assets						6,346
Property and equipment						444
Operating lease right-of-use assets						2,252
Goodwill						117,784
Intangible assets						70,000
Other long-term assets						51
Total assets						196,877
Accounts payable						950
Accrued compensation						1,312
Accrued liabilities						1,497
Deferred revenues						1,916
Long-term deferred tax liabilities						11,686
Long-term operating lease liabilities						920
Other long-term liabilities						130
Total liabilities						18,411
Total purchase price						178,466
Total purchase price, net of cash acquired						$ 178,001
Measurement period adjustments		(1,500)	400
Adjustment, accounts receivable and unbilled receivables		1,100
Adjustment, deferred tax liability, noncurrent		100
Purchase price adjustments from business acquisitions		100
Increase (decrease) in deferred tax liabilities			300
Increase in accrued liabilities			100
FDS Amplicare | Customer relationships
Business Acquisition [Line Items]
Adjustment, intangibles		400
ReCept Holdings, Inc.
Business Acquisition [Line Items]
Cash and cash equivalents					$ 0
Accounts receivable and unbilled receivables					2,383
Prepaid expenses					192
Other current assets					12,223
Total current assets					14,798
Property and equipment					172
Operating lease right-of-use assets					773
Goodwill					77,394
Intangible assets					28,100
Other long-term assets					195
Total assets					121,432
Accounts payable					219
Accrued compensation					1,756
Accrued liabilities					18,499
Deferred revenues					222
Long-term deferred tax liabilities					2,883
Long-term operating lease liabilities					614
Other long-term liabilities					0
Total liabilities					24,193
Total purchase price					97,239
Total purchase price, net of cash acquired					$ 90,670
Measurement period adjustments			(4,200)
Purchase price adjustments from business acquisitions			5,200
Increase (decrease) in deferred tax liabilities			(700)
Decrease in other assets, current			$ 1,700
MarkeTouch Media, LLC
Business Acquisition [Line Items]
Cash and cash equivalents		237
Accounts receivable and unbilled receivables		2,302
Prepaid expenses		96
Other current assets		0
Total current assets		2,635
Property and equipment		177
Operating lease right-of-use assets		602
Goodwill		42,273
Intangible assets		38,000
Other long-term assets		2,850
Total assets		86,537
Accounts payable		473
Accrued compensation		0
Accrued liabilities		292
Deferred revenues		347
Long-term deferred tax liabilities		0
Long-term operating lease liabilities		206
Other long-term liabilities		2,850
Total liabilities		4,168
Total purchase price		82,369
Total purchase price, net of cash acquired		$ 82,132
Measurement period adjustments	$ (300)