REVENUE - Disaggregation of Revenue - Geographical (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 3,035,464	$ 2,459,049	$ 8,922,988	$ 7,062,908
United States
Disaggregation of Revenue [Line Items]
Revenues	2,814,008	2,213,140	8,193,052	6,327,826
Canada
Disaggregation of Revenue [Line Items]
Revenues	131,565	125,455	399,055	374,904
Europe
Disaggregation of Revenue [Line Items]
Revenues	22,899	64,362	141,518	199,592
Mexico
Disaggregation of Revenue [Line Items]
Revenues	66,992	56,092	189,363	160,586
SCS
Disaggregation of Revenue [Line Items]
Revenues	1,206,508	802,357	3,469,008	2,284,687
Operating Segments | FMS
Disaggregation of Revenue [Line Items]
Revenues	1,581,870	1,436,340	4,732,193	4,180,066
Operating Segments | FMS | United States
Disaggregation of Revenue [Line Items]
Revenues	1,478,831	1,295,617	4,351,413	3,756,851
Operating Segments | FMS | Canada
Disaggregation of Revenue [Line Items]
Revenues	80,140	76,361	239,262	223,623
Operating Segments | FMS | Europe
Disaggregation of Revenue [Line Items]
Revenues	22,899	64,362	141,518	199,592
Operating Segments | FMS | Mexico
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Operating Segments | SCS
Disaggregation of Revenue [Line Items]
Revenues	1,206,508	802,357	3,469,008	2,284,687
Operating Segments | SCS | United States
Disaggregation of Revenue [Line Items]
Revenues	1,077,669	689,180	3,089,087	1,952,193
Operating Segments | SCS | Canada
Disaggregation of Revenue [Line Items]
Revenues	61,338	57,085	190,049	171,908
Operating Segments | SCS | Europe
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Operating Segments | SCS | Mexico
Disaggregation of Revenue [Line Items]
Revenues	67,501	56,092	189,872	160,586
Operating Segments | DTS
Disaggregation of Revenue [Line Items]
Revenues	454,328	380,357	1,329,504	1,055,575
Operating Segments | DTS | United States
Disaggregation of Revenue [Line Items]
Revenues	454,328	380,357	1,329,504	1,055,575
Operating Segments | DTS | Canada
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Operating Segments | DTS | Europe
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Operating Segments | DTS | Mexico
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(207,242)	(160,005)	(607,717)	(457,420)
Eliminations | United States
Disaggregation of Revenue [Line Items]
Revenues	(196,820)	(152,014)	(576,952)	(436,793)
Eliminations | Canada
Disaggregation of Revenue [Line Items]
Revenues	(9,913)	(7,991)	(30,256)	(20,627)
Eliminations | Europe
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Eliminations | Mexico
Disaggregation of Revenue [Line Items]
Revenues	$ (509)	$ 0	$ (509)	$ 0