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Revenue - Schedule of Revenues Disaggregated by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Revenues, net	$ 369,023	$ 409,747	$ 732,188	$ 817,970
North America
Disaggregation Of Revenue [Line Items]
Revenues, net	255,644	284,538	505,656	563,715
Continental Europe
Disaggregation Of Revenue [Line Items]
Revenues, net	77,329	81,592	153,486	164,123
United Kingdom
Disaggregation Of Revenue [Line Items]
Revenues, net	24,525	29,210	49,136	59,495
Other
Disaggregation Of Revenue [Line Items]
Revenues, net	11,525	14,407	23,910	30,637
Digital Subscription Revenues
Disaggregation Of Revenue [Line Items]
Revenues, net	156,969	151,018	305,824	289,565
Digital Subscription Revenues | North America
Disaggregation Of Revenue [Line Items]
Revenues, net	102,851	101,099	201,611	193,338
Digital Subscription Revenues | Continental Europe
Disaggregation Of Revenue [Line Items]
Revenues, net	43,586	39,342	83,769	75,503
Digital Subscription Revenues | United Kingdom
Disaggregation Of Revenue [Line Items]
Revenues, net	6,993	6,955	13,411	13,519
Digital Subscription Revenues | Other
Disaggregation Of Revenue [Line Items]
Revenues, net	3,539	3,622	7,033	7,205
Studio + Digital Fees
Disaggregation Of Revenue [Line Items]
Revenues, net	156,799	192,712	314,670	382,834
Studio + Digital Fees | North America
Disaggregation Of Revenue [Line Items]
Revenues, net	116,958	142,767	234,557	282,919
Studio + Digital Fees | Continental Europe
Disaggregation Of Revenue [Line Items]
Revenues, net	23,681	29,402	47,630	58,482
Studio + Digital Fees | United Kingdom
Disaggregation Of Revenue [Line Items]
Revenues, net	11,498	14,551	22,761	28,933
Studio + Digital Fees | Other
Disaggregation Of Revenue [Line Items]
Revenues, net	4,662	5,992	9,722	12,500
Service Revenues, net
Disaggregation Of Revenue [Line Items]
Revenues, net	313,768	343,730	620,494	672,399
Service Revenues, net | North America
Disaggregation Of Revenue [Line Items]
Revenues, net	219,809	243,866	436,168	476,257
Service Revenues, net | Continental Europe
Disaggregation Of Revenue [Line Items]
Revenues, net	67,267	68,744	131,399	133,985
Service Revenues, net | United Kingdom
Disaggregation Of Revenue [Line Items]
Revenues, net	18,491	21,506	36,172	42,452
Service Revenues, net | Other
Disaggregation Of Revenue [Line Items]
Revenues, net	8,201	9,614	16,755	19,705
Product sales and other, net
Disaggregation Of Revenue [Line Items]
Revenues, net	55,255	66,017	111,694	145,571
Product sales and other, net | North America
Disaggregation Of Revenue [Line Items]
Revenues, net	35,835	40,672	69,488	87,458
Product sales and other, net | Continental Europe
Disaggregation Of Revenue [Line Items]
Revenues, net	10,062	12,848	22,087	30,138
Product sales and other, net | United Kingdom
Disaggregation Of Revenue [Line Items]
Revenues, net	6,034	7,704	12,964	17,043
Product sales and other, net | Other
Disaggregation Of Revenue [Line Items]
Revenues, net	$ 3,324	$ 4,793	$ 7,155	$ 10,932

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No definition available.

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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 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: 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=118956577&loc=SL49130545-203045

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