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Revenue - Schedule of Revenues Disaggregated by Revenue Source and Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Apr. 03, 2021 | Mar. 28, 2020
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | $ 331,796 | $ 400,361
North America |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 221,315 | 283,706
Continental Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 81,896 | 79,990
United Kingdom |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 19,067 | 25,028
Other |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 9,518 | 11,637
Digital Subscription Revenues |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 206,062 | 174,545
Digital Subscription Revenues | North America |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 132,090 | 116,349
Digital Subscription Revenues | Continental Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 58,915 | 46,638
Digital Subscription Revenues | United Kingdom |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 9,809 | 7,576
Digital Subscription Revenues | Other |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 5,248 | 3,982
Workshops + Digital Fees |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 73,758 | 150,112
Workshops + Digital Fees | North America |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 54,904 | 112,843
Workshops + Digital Fees | Continental Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 10,940 | 21,519
Workshops + Digital Fees | United Kingdom |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 5,169 | 11,129
Workshops + Digital Fees | Other |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 2,745 | 4,621
Subscription |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 279,820 | 324,657
Subscription | North America |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 186,994 | 229,192
Subscription | Continental Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 69,855 | 68,157
Subscription | United Kingdom |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 14,978 | 18,705
Subscription | Other |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 7,993 | 8,603
Product sales and other, net |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 51,976 | 75,704
Product sales and other, net | North America |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 34,321 | 54,514
Product sales and other, net | Continental Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 12,041 | 11,833
Product sales and other, net | United Kingdom |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | 4,089 | 6,323
Product sales and other, net | Other |  |
Disaggregation Of Revenue [Line Items] |  |
Revenues, net | $ 1,525 | $ 3,034

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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