Quarterly report pursuant to Section 13 or 15(d)

Other Intangible Assets - Components of Gross and Net Acquired Intangible Assets (Details)

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Other Intangible Assets - Components of Gross and Net Acquired Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 26, 2020
Sep. 26, 2020
Dec. 28, 2019
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross $ 264,600 $ 264,600 $ 264,600
Accumulated Amortization (103,300) (99,900) (89,700)
Accumulated Impairment (29,800) (29,800) (29,700)
Net Carrying Value 131,557 134,924 145,153
Marketing-related intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 91,200 91,200 91,200
Accumulated Amortization (17,800) (17,600) (16,800)
Accumulated Impairment (26,000) (26,000) (26,000)
Net Carrying Value 47,400 47,600 48,400
Other acquired intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 33,100 33,100 33,100
Accumulated Amortization (18,700) (18,200) (16,900)
Accumulated Impairment (1,200) (1,200) (1,200)
Net Carrying Value 13,200 13,600 15,000
Amortizable | Marketing-related intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 20,600 20,600 20,600
Accumulated Amortization (17,800) (17,600) (16,800)
Accumulated Impairment 0 0 0
Net Carrying Value 2,800 3,000 3,800
Amortizable | Customer-related intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 140,300 140,300 140,300
Accumulated Amortization (66,800) (64,100) (56,000)
Accumulated Impairment (2,500) (2,500) (2,500)
Net Carrying Value 71,000 73,700 81,800
Amortizable | Other acquired intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 26,000 26,000 26,000
Accumulated Amortization (18,700) (18,200) (16,900)
Accumulated Impairment 0 0 0
Net Carrying Value 7,300 7,800 9,100
Nonamortizable | Marketing-related intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 70,600 70,600 70,600
Accumulated Impairment (26,000) (26,000) (26,000)
Net Carrying Value 44,600 44,600 44,600
Nonamortizable | Other acquired intangible assets      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Gross 7,100 7,100 7,100
Accumulated Impairment (1,200) (1,200) (1,200)
Net Carrying Value $ 5,900 $ 5,900 $ 5,900