v3.26.1
Operating Segment Information - Schedule of Information Related to Operating Segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Disclosures related to operating segments      
Number of reportable segments not disclosed reportable operating segments    
Revenue $ 11,264,761 $ 10,340,181 $ 9,596,615
Cost of sales 5,556,968 5,166,017 4,910,199
Gross margin 5,707,793 5,174,164 4,686,416
Selling and administrative expenses 3,086,145 2,814,438 2,617,783
UniFirst Corporation transaction expenses 15,136 0 0
Operating income 2,606,512 2,359,726 2,068,633
Depreciation and amortization 512,846 494,183 442,384
Capital expenditures 395,105 408,884 409,469
Total assets 10,529,140 9,825,241 9,168,817
Uniform Rental and Facility Services      
Disclosures related to operating segments      
Revenue 8,621,624 7,976,073 7,465,199
First Aid and Safety Services      
Disclosures related to operating segments      
Revenue 1,391,853 1,218,090 1,067,334
Operating Segments | Uniform Rental and Facility Services      
Disclosures related to operating segments      
Revenue 8,621,624 7,976,073 7,465,199
Cost of sales 4,312,097 4,040,888 3,865,071
Gross margin 4,309,527 3,935,185 3,600,128
Selling and administrative expenses 2,232,515 2,061,795 1,940,627
UniFirst Corporation transaction expenses 0    
Operating income 2,077,012 1,873,390 1,659,501
Depreciation and amortization 412,392 385,360 340,426
Capital expenditures 279,432 301,624 261,225
Total assets 8,346,410 7,993,720 7,503,043
Operating Segments | First Aid and Safety Services      
Disclosures related to operating segments      
Revenue 1,391,853 1,218,090 1,067,334
Cost of sales 589,370 521,480 474,678
Gross margin 802,483 696,610 592,656
Selling and administrative expenses 449,084 401,882 353,503
UniFirst Corporation transaction expenses 0    
Operating income 353,399 294,728 239,153
Depreciation and amortization 72,922 86,286 81,342
Capital expenditures 59,011 55,447 100,025
Total assets 939,217 810,188 730,003
Operating Segments | All Other      
Disclosures related to operating segments      
Revenue 1,251,284 1,146,018 1,064,082
Cost of sales 655,501 603,649 570,450
Gross margin 595,783 542,369 493,632
Selling and administrative expenses 404,546 350,761 323,653
UniFirst Corporation transaction expenses 0    
Operating income 191,237 191,608 169,979
Depreciation and amortization 27,532 22,537 20,616
Capital expenditures 56,662 51,813 48,219
Total assets 954,495 757,360 593,756
Corporate      
Disclosures related to operating segments      
Revenue 0 0 0
Cost of sales 0 0 0
Gross margin 0 0 0
Selling and administrative expenses 0 0 0
UniFirst Corporation transaction expenses 15,136    
Operating income (15,136) 0 0
Depreciation and amortization 0 0 0
Capital expenditures 0 0 0
Total assets $ 289,018 $ 263,973 $ 342,015