CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Cash flows from operating activities
Net income	$ 127,460	$ 6,837	$ 23,832
Adjustments to reconcile net income to net cash provided by operating activities:
Restructuring charge	0	0	16,518
Pension settlement expense	0	102,109	21,294
Multiemployer pension plan charges	0	0	11,701
Depreciation and amortization	59,011	61,871	61,723
Stock-based compensation expense	12,959	14,809	12,430
(Gain)/loss from joint ventures	(10,764)	(18,641)	36,273
Deferred income taxes	4,047	105,174	(13,128)
Long-term retirement benefit obligations	(46,877)	(184,418)	(56,942)
Other – net	1,139	(1,352)	4,525
Changes in operating assets and liabilities:
Accounts receivable – net	(37,579)	12,470	9,825
Other current assets	18,241	(30,527)	1,599
Accounts payable, accrued payroll and other liabilities	20,490	10,012	(32,276)
Unexpired subscriptions	8,990	8,368	6,502
Net cash provided by operating activities	157,117	86,712	103,876
Cash flows from investing activities
Purchases of marketable securities	(470,493)	(466,522)	(566,846)
Maturities/disposals of marketable securities	434,012	548,461	725,365
Cash distribution from corporate-owned life insurance	0	0	38,000
Business acquisitions	0	0	(40,410)
Proceeds/(purchases) of investments	12,447	15,591	(1,955)
Capital expenditures	(77,487)	(84,753)	(30,095)
Other - net	426	1,323	409
Net cash (used) in/provided by investing activities	(101,095)	14,100	124,468
Cash flows from financing activities
Repayment of debt and capital lease obligations	(552)	(552)	(189,768)
Dividends paid	(26,418)	(26,004)	(25,897)
Stock issuances	41,288	4,601	761
Repurchases	0	0	(15,684)
Windfall tax benefit related to stock-based payments	0	0	3,193
Share-based compensation tax withholding	(10,494)	(4,064)	(9,629)
Net cash provided by/(used) in financing activities	3,824	(26,019)	(237,024)
Net increase/(decrease) in cash, cash equivalents and restricted cash	59,846	74,793	(8,680)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(983)	593	(237)
Cash, cash equivalents and restricted cash at the beginning of the year	200,936	125,550	134,467
Cash, cash equivalents and restricted cash at the end of the year	259,799	200,936	125,550
Cash payments
Interest, net of capitalized interest	28	28	39
Income tax (refunds)/payments – net	$ (1)	$ 22	$ 45