Business Acquisitions - Allocation of Aggregate Purchase Consideration (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jun. 04, 2021	Dec. 31, 2020	Oct. 28, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,591,474	$ 1,531,455		$ 1,525,000
Fiscal 2022 Acquisitions
Business Acquisition [Line Items]
Accounts receivable	7,433
Prepaid expenses and other current assets	4,915
Property and equipment	369
Operating lease right of use asset	545
Goodwill	95,737
Other long-term assets	11
Accounts payable and accrued expenses	(6,221)
Deferred revenue	(21,474)
Deferred tax liability	(10,140)
Other long-term liabilities	(516)
Total	121,704
Fiscal 2022 Acquisitions | Trade names
Business Acquisition [Line Items]
Finite-lived intangibles	12,839
Fiscal 2022 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles	20,040
Fiscal 2022 Acquisitions | Other intangibles
Business Acquisition [Line Items]
Finite-lived intangibles	$ 18,166
Fiscal 2021 Acquisitions
Business Acquisition [Line Items]
Accounts receivable		9,513
Prepaid expenses and other current assets		1,655
Property and equipment		2,188
Operating lease right of use asset		5,888
Goodwill		97,032
Other long-term assets		62
Deferred tax asset		230
Accounts payable and accrued expenses		(5,863)
Deferred revenue		(9,491)
Operating lease liabilities, current		(7,191)
Other current liabilities		(14)
Deferred tax liability		(9,237)
Other long-term liabilities		(1,511)
Total		160,449
Fiscal 2021 Acquisitions | Trade names
Business Acquisition [Line Items]
Finite-lived intangibles		16,349
Fiscal 2021 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles		21,945
Fiscal 2021 Acquisitions | Other intangibles
Business Acquisition [Line Items]
Finite-lived intangibles		38,894
SEOmoz Acquisition
Business Acquisition [Line Items]
Accounts receivable			$ 3,278
Prepaid expenses and other current assets			1,547
Property and equipment			1,845
Operating lease right of use asset			5,888
Goodwill		$ 41,300	41,329
Other long-term assets			62
Accounts payable and accrued expenses			(2,655)
Deferred revenue			(6,398)
Operating lease liabilities, current			(7,191)
Other current liabilities			(14)
Deferred tax liability			(5,327)
Other long-term liabilities			(550)
Total			66,997
SEOmoz Acquisition | Trade names
Business Acquisition [Line Items]
Finite-lived intangibles			7,406
SEOmoz Acquisition | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles			5,000
SEOmoz Acquisition | Other intangibles
Business Acquisition [Line Items]
Finite-lived intangibles			$ 22,777
Fiscal 2020 Acquisitions
Business Acquisition [Line Items]
Accounts receivable				46,138
Prepaid expenses and other current assets				9,105
Property and equipment				2,204
Operating lease right of use asset				10,644
Goodwill				202,901
Other long-term assets				685
Deferred tax asset				992
Accounts payable and accrued expenses				(28,979)
Deferred revenue				(21,918)
Operating lease liabilities, current				(4,520)
Long-term debt				(910)
Operating lease liabilities, noncurrent				(13,104)
Income taxes payable				(3,297)
Liability for uncertain tax positions				(1,576)
Deferred tax liability				(53,870)
Other long-term liabilities				(9,269)
Total				472,760
Fiscal 2020 Acquisitions | Trade names
Business Acquisition [Line Items]
Finite-lived intangibles				66,763
Fiscal 2020 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles				214,347
Fiscal 2020 Acquisitions | Other intangibles
Business Acquisition [Line Items]
Finite-lived intangibles				$ 56,424
RetailMeNot, Inc.
Business Acquisition [Line Items]
Accounts receivable					$ 40,525
Prepaid expenses and other current assets					7,367
Property and equipment					587
Operating lease right of use asset					10,313
Goodwill					169,581
Other long-term assets					494
Deferred tax asset					605
Accounts payable and accrued expenses					(24,526)
Deferred revenue					(11,175)
Operating lease liabilities, current					(4,029)
Operating lease liabilities, noncurrent					(13,085)
Income taxes payable					(3,308)
Liability for uncertain tax positions					(1,576)
Deferred tax liability					(52,504)
Other long-term liabilities					(9,275)
Total					414,384
RetailMeNot, Inc. | Trade names
Business Acquisition [Line Items]
Finite-lived intangibles					62,940
RetailMeNot, Inc. | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles					198,840
RetailMeNot, Inc. | Other intangibles
Business Acquisition [Line Items]
Finite-lived intangibles					$ 42,610