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Revenue - Schedule of Revenues Disaggregated by Revenue Source and Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 01, 2022 | Oct. 02, 2021 | Oct. 01, 2022 | Oct. 02, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | $ 249,718 | $ 293,497 | $ 816,932 | $ 936,672
North America |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 176,082 | 197,797 | 568,410 | 626,742
Continental Europe |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 56,496 | 71,933 | 189,140 | 231,764
United Kingdom |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 10,898 | 15,666 | 38,094 | 51,735
Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 6,242 | 8,101 | 21,288 | 26,431
Digital Subscription Revenues |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 155,881 | 195,288 | 521,582 | 606,687
Digital Subscription Revenues | North America |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 102,735 | 125,077 | 342,489 | 387,422
Digital Subscription Revenues | Continental Europe |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 43,638 | 56,542 | 145,920 | 176,059
Digital Subscription Revenues | United Kingdom |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 5,693 | 9,007 | 20,106 | 28,410
Digital Subscription Revenues | Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 3,815 | 4,662 | 13,067 | 14,796
Workshops + Digital Fees |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 64,865 | 67,113 | 196,540 | 208,405
Workshops + Digital Fees | North America |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 52,113 | 51,661 | 155,558 | 158,265
Workshops + Digital Fees | Continental Europe |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 7,586 | 8,727 | 23,599 | 28,397
Workshops + Digital Fees | United Kingdom |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 3,764 | 4,528 | 12,482 | 14,304
Workshops + Digital Fees | Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 1,402 | 2,197 | 4,901 | 7,439
Subscription Revenues, net |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 220,746 | 262,401 | 718,122 | 815,092
Subscription Revenues, net | North America |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 154,848 | 176,738 | 498,047 | 545,687
Subscription Revenues, net | Continental Europe |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 51,224 | 65,269 | 169,519 | 204,456
Subscription Revenues, net | United Kingdom |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 9,457 | 13,535 | 32,588 | 42,714
Subscription Revenues, net | Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 5,217 | 6,859 | 17,968 | 22,235
Product sales and other, net |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 28,972 | 31,096 | 98,810 | 121,580
Product sales and other, net | North America |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 21,234 | 21,059 | 70,363 | 81,055
Product sales and other, net | Continental Europe |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 5,272 | 6,664 | 19,621 | 27,308
Product sales and other, net | United Kingdom |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | 1,441 | 2,131 | 5,506 | 9,021
Product sales and other, net | Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenues, net | $ 1,025 | $ 1,242 | $ 3,320 | $ 4,196

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