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Summary of Activity in Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | $ 16,350 | $ 13,880 | $ 13,334
Charged to Costs and Expenses | 9,415 | 9,831 | 7,415
Write-offs, Net of Recoveries | (8,432) | (7,361) | (6,869)
Balance at End of Period | 17,333 | 16,350 | 13,880
Trade Receivables |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 7,284 | 6,413 | 6,131
Charged to Costs and Expenses | 6,121 | 4,309 | 3,886
Write-offs, Net of Recoveries | (4,735) | (3,438) | (3,604)
Balance at End of Period | 8,670 | 7,284 | 6,413
Other Receivables |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 8,806 | 7,211 | 6,952
Charged to Costs and Expenses | 3,291 | 5,518 | 3,520
Write-offs, Net of Recoveries | (3,698) | (3,923) | (3,261)
Balance at End of Period | 8,399 | 8,806 | 7,211
Other Non-Current Receivables |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 260 | 256 | 251
Charged to Costs and Expenses | 3 | 4 | 9
Write-offs, Net of Recoveries | 1 |  | (4)
Balance at End of Period | $ 264 | $ 260 | $ 256

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