Reconciliation of Total Segment Income to Consolidated Income Before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Segment Reconciliation [Abstract]
Total Segment Income	$ 643,941	$ 583,788	$ 511,609
Depreciation and amortization	(53,665)	(44,369)	(38,140)
Gain (loss) on sale/disposal of assets	4,737	3,148	(863)
Non-cash compensation expense	(22,792)	(20,713)	(18,564)
Recapitalization-related expenses	(532)	(622)
Income from operations	571,689	521,232	454,042
INTEREST INCOME	3,334	1,462	685
Interest expense	(146,345)	(122,541)	(110,069)
Income before provision for income taxes	$ 428,678	$ 400,153	$ 344,658

Additional recapitalization related expenses.

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Amount of earnings before interest, taxes, depreciation, amortization and other for the reportable segment.

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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The net result for the period of deducting operating expenses from operating revenues.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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