CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 26, 2021	Dec. 27, 2020
Cash flows from operating activities
Net income	$ 173,905	$ 219,971	$ 100,837
Adjustments to reconcile net income to net cash provided by operating activities:
Impairment on indefinite-lived asset	4,069	0	0
Pension settlement expense	0	0	80,641
Depreciation and amortization	82,654	57,502	62,136
Lease termination charge	0	3,831	0
Amortization of right of use asset	9,923	9,488	8,568
Stock-based compensation expense	35,306	22,215	14,437
Multiemployer pension plan liability adjustment	14,989	0	0
Gain on the sale of land	(34,227)	0	0
Gain from joint ventures	0	0	(5,000)
Gain on non-marketable equity investment	0	(27,156)	(10,074)
Change in long-term retirement benefit obligations	(29,049)	(19,222)	(17,166)
Fair market value adjustment on life insurance products	1,081	118	(578)
Other – net	(3,005)	3,210	62
Changes in operating assets and liabilities:
Accounts receivable – net	20,889	(49,216)	29,710
Other current assets	(23,220)	(5,289)	8,960
Accounts payable, accrued payroll and other liabilities	(111,216)	39,696	8,473
Unexpired subscriptions	8,588	13,950	16,927
Net cash provided by operating activities	150,687	269,098	297,933
Cash flows from investing activities
Purchases of marketable securities	(6,648)	(763,425)	(632,364)
Maturities/disposals of marketable securities	484,984	593,465	491,128
Business acquisitions	(515,586)	0	(33,085)
(Purchases)/proceeds from investments	(1,832)	20,074	6,841
Capital expenditures	(36,961)	(34,637)	(34,451)
Other - net	2,482	3,716	2,851
Net cash used in investing activities	(73,561)	(180,807)	(199,080)
Cash flows from financing activities
Dividends paid	(56,790)	(45,337)	(38,437)
Payment of contingent consideration	(2,586)	(862)	(862)
Stock issuances	3	2,454	6,071
Repurchases	(105,056)	0	0
Share-based compensation tax withholding	(9,877)	(11,202)	(11,745)
Net cash used in financing activities	(174,306)	(54,947)	(44,973)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(97,180)	33,344	53,880
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,953)	(1,002)	566
Cash, cash equivalents and restricted cash at the beginning of the year	334,306	301,964	247,518
Cash, cash equivalents and restricted cash at the end of the year	235,173	334,306	301,964
Cash payments
Interest, net of capitalized interest	1,583	546	508
Income tax payments – net	$ 110,161	$ 66,443	$ 24,382