CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Cash flows from operating activities
Net income	$ 219,971	$ 100,837	$ 139,966
Adjustments to reconcile net income to net cash provided by operating activities:
Pension settlement expense	0	80,641	0
Depreciation and amortization	57,502	62,136	60,661
Lease termination charge	3,831	0	0
Amortization of right of use asset	9,488	8,568	7,384
Stock-based compensation expense	22,215	14,437	12,948
Gain from joint ventures	0	(5,000)	0
Deferred income taxes	(6,358)	(16,043)	4,242
Gain on non-marketable equity investment	(27,156)	(10,074)	(1,886)
Change in long-term retirement benefit obligations	(19,222)	(17,166)	(22,914)
Fair market value adjustment on life insurance products	118	(578)	(3,461)
Uncertain tax positions	0	(644)	(4,627)
Other – net	3,210	706	700
Changes in operating assets and liabilities:
Accounts receivable – net	(49,216)	29,710	9,062
Other current assets	(5,289)	8,960	(3,355)
Accounts payable, accrued payroll and other liabilities	46,054	24,516	(13,197)
Unexpired subscriptions	13,950	16,927	4,375
Net cash provided by operating activities	269,098	297,933	189,898
Cash flows from investing activities
Purchases of marketable securities	(763,425)	(632,364)	(572,337)
Maturities/disposals of marketable securities	593,465	491,128	707,632
Business acquisitions	0	(33,085)	0
Proceeds from investments	20,074	6,841	85
Capital expenditures	(34,637)	(34,451)	(45,441)
Other - net	3,716	2,851	3,273
Net cash (used) in/provided by investing activities	(180,807)	(199,080)	93,212
Cash flows from financing activities
Repayment of debt and capital lease obligations	0	0	(252,559)
Dividends paid	(45,337)	(38,437)	(31,604)
Payments	(862)	(862)	0
Stock issuances	2,454	6,071	4,520
Share-based compensation tax withholding	(11,202)	(11,745)	(15,648)
Net cash used in financing activities	(54,947)	(44,973)	(295,291)
Net increase/(decrease) in cash, cash equivalents and restricted cash	33,344	53,880	(12,181)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,002)	566	(100)
Cash, cash equivalents and restricted cash at the beginning of the year	301,964	247,518	259,799
Cash, cash equivalents and restricted cash at the end of the year	334,306	301,964	247,518
Cash payments
Interest, net of capitalized interest	546	508	28,049
Income tax payments – net	$ 66,443	$ 24,382	$ 30,407