Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

Acquisitions (Details) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
Acquisitions (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Dec. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Acquisitions [Abstract]
Purchase price, net of cash acquired			$ 18,963	$ 0
Fair Value of Assets Acquired [Abstract]
Goodwill		$ 202,979	$ 215,582
3i [Member]
Acquisitions [Abstract]
Percentage of entity acquired		100.00%
Purchase price, net of cash acquired		$ 15,700
Cash acquired		2,100
Accrued liability		800
Incremental contingent consideration		7,000
Contingent consideration		3,100
Gross purchase price		24,500
Fair Value of Assets Acquired [Abstract]
Intangible assets		14,400
Property and equipment		300
Cash		2,100
Accounts receivable		800
Inventory		300
Current liabilities		300
Deferred tax liability		3,100
Goodwill		6,400
Useful life			8 years
3i [Member] \| Customer Relationships [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets		3,700
3i [Member] \| Technology [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets		10,000
3i [Member] \| Other Intangibles [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets		$ 700
MyFavoriteThings, Inc. [Member]
Acquisitions [Abstract]
Percentage of entity acquired	100.00%
Purchase price, net of cash acquired	$ 16,800
Cash acquired	400
Accrued liability	900
Incremental contingent consideration	24,000
Contingent consideration	8,700
Gross purchase price	29,400
Fair Value of Assets Acquired [Abstract]
Intangible assets	16,400
Cash	400
Accounts receivable	100
Deferred tax liability	3,500
Goodwill	12,600
MyFavoriteThings, Inc. [Member] \| Customer Relationships [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets	2,000
Useful life			4 years
MyFavoriteThings, Inc. [Member] \| Technology [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets	11,300
Useful life			8 years
MyFavoriteThings, Inc. [Member] \| Tradenames [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets	2,800
Useful life			8 years
MyFavoriteThings, Inc. [Member] \| Other Intangibles [Member]
Fair Value of Assets Acquired [Abstract]
Intangible assets	$ 300
Useful life			3 years