Summary of Activity in Allowance for Doubtful Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 8,989	$ 14,501	$ 14,633
Charged to Costs and Expenses	5,315	3,736	4,984
Write-offs, Net of Recoveries	(4,633)	(9,248)	(5,116)
Balance at End of Period	9,671	8,989	14,501
Trade Receivables
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	3,773	8,650	6,591
Charged to Costs and Expenses	2,893	1,801	4,368
Write-offs, Net of Recoveries	(2,328)	(6,678)	(2,309)
Balance at End of Period	4,338	3,773	8,650
Other Receivables
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	4,994	5,612	7,768
Charged to Costs and Expenses	2,414	1,929	610
Write-offs, Net of Recoveries	(2,305)	(2,547)	(2,766)
Balance at End of Period	5,103	4,994	5,612
Other Non-Current Receivables
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	222	239	274
Charged to Costs and Expenses	8	6	6
Write-offs, Net of Recoveries		(23)	(41)
Balance at End of Period	$ 230	$ 222	$ 239