Guarantor and Non-Guarantor Financial Information - Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ 246,366	$ 16,846
Cash flows from investing activities:
Capital expenditures	(10,016)	(18,148)
Proceeds from sale of assets	303
Payments for acquisition of businesses, net of cash acquired	(3,227)	(82,430)
Net cash used in investing activities	(12,940)	(100,578)
Cash flows from financing activities:
Repayments of long-term debt	(2,250)
Repayments of borrowings under revolving credit facility	(160,000)	(95,000)
Borrowings under revolving credit facility	160,000	260,000
Dividends paid	(60,878)	(62,194)
Payments for repurchase of common stock, net		(10,000)
Payments of tax withholding on behalf of employees for net share settlement of share-based compensation	(64)	(905)
Net cash provided by (used in) financing activities	(63,192)	91,901
Effect of exchange rate fluctuations on cash and cash equivalents	(349)	94
Net increase (decrease) in cash and cash equivalents	169,885	8,263
Cash and cash equivalents at beginning of period	11,315	11,648
Cash and cash equivalents at end of period	181,200	19,911
Parent | Reportable Legal Entities
Cash flows from financing activities:
Repayments of long-term debt	(2,250)
Repayments of borrowings under revolving credit facility	(160,000)	(95,000)
Borrowings under revolving credit facility	160,000	260,000
Dividends paid	(60,878)	(62,194)
Payments for repurchase of common stock, net		(10,000)
Intercompany transactions	63,128	(92,806)
Guarantor Subsidiaries | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	211,713	8,526
Cash flows from investing activities:
Capital expenditures	(9,055)	(16,530)
Proceeds from sale of assets	303
Payments for acquisition of businesses, net of cash acquired	(3,227)	(82,430)
Net cash used in investing activities	(11,979)	(98,960)
Cash flows from financing activities:
Payments of tax withholding on behalf of employees for net share settlement of share-based compensation	(64)	(905)
Intercompany transactions	(42,465)	98,111
Net cash provided by (used in) financing activities	(42,529)	97,206
Net increase (decrease) in cash and cash equivalents	157,205	6,772
Cash and cash equivalents at beginning of period	6,955	9,871
Cash and cash equivalents at end of period	164,160	16,643
Non-Guarantor Subsidiaries | Reportable Legal Entities
Cash flows from operating activities:
Net cash provided by (used in) operating activities	34,653	8,320
Cash flows from investing activities:
Capital expenditures	(961)	(1,618)
Net cash used in investing activities	(961)	(1,618)
Cash flows from financing activities:
Intercompany transactions	(20,663)	(5,305)
Net cash provided by (used in) financing activities	(20,663)	(5,305)
Effect of exchange rate fluctuations on cash and cash equivalents	(349)	94
Net increase (decrease) in cash and cash equivalents	12,680	1,491
Cash and cash equivalents at beginning of period	4,360	1,777
Cash and cash equivalents at end of period	$ 17,040	$ 3,268