CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Total revenue	$ 3,540,160	$ 2,923,933	$ 2,621,226
Costs and expenses:
Selling, general and administrative	619,919	528,935	517,622
Amortization of intangible assets	124,857	111,877	89,538
Operating income	589,862	432,729	351,151
Other income (expense):
Interest income	652	834	1,522
Interest expense	(73,910)	(86,433)	(60,882)
Other (expense) income, net	(35,894)	99,984	12,293
Income before income taxes	480,710	447,114	304,084
Provision for income taxes	81,873	81,808	50,023
Net income	398,837	365,306	254,061
Less: Net income attributable to noncontrolling interests	7,855	1,002	2,042
Net income attributable to common shareholders	$ 390,982	$ 364,304	$ 252,019
Earnings per common share
Basic (in dollars per share)	$ 7.77	$ 7.35	$ 5.17
Diluted (in dollars per share)	$ 7.60	$ 7.20	$ 5.07
Weighted-average number of common shares outstanding:
Basic (in shares)	50,293	49,550	48,730
Diluted (in shares)	51,425	50,611	49,693
Service
Total revenue	$ 2,755,579	$ 2,296,156	$ 2,029,371
Costs and expenses:
Cost of services provided and products sold	1,837,487	1,533,230	1,371,699
Product
Total revenue	784,581	627,777	591,855
Costs and expenses:
Cost of services provided and products sold	$ 368,035	$ 317,162	$ 291,216