Allowance for Doubtful Accounts - Summary of Activity in Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Schedule Of Financial Receivables [Line Items]
Balance at beginning of year	$ 24,274	$ 151,792	$ 232,163
Balance at end of year	28,962	24,274	151,792
Allowance for Doubtful Accounts [Member]
Schedule Of Financial Receivables [Line Items]
Balance at beginning of year	25,388	22,623	24,989
Charged to costs and expenses	17,999	11,112	12,103
Customer accounts written off—net of recoveries	(17,416)	(8,347)	(14,469)
Balance at end of year	$ 25,971	$ 25,388	$ 22,623