Schedule of Financial Performance by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information
Revenue	$ 11,628,830	$ 12,506,109	$ 11,876,674
Segment EBITDA	1,368,759	1,328,361	1,251,399
Depreciation and amortization	299,497	314,406	294,077
Specialty
Segment Reporting Information
Revenue	1,508,995	1,464,042	1,477,680
Segment EBITDA	162,673	161,184	168,525
Depreciation and amortization	29,180	29,464	28,256
NorthAmerica
Segment Reporting Information
Revenue	4,632,339	5,209,294	5,182,609
Segment EBITDA	778,504	712,957	660,153
Depreciation and amortization	97,390	93,747	87,348
Europe
Segment Reporting Information
Revenue	5,492,184	5,838,124	5,221,754
Segment EBITDA	427,582	454,220	422,721
Depreciation and amortization	172,927	191,195	178,473
us-gaap_IntersegmentEliminationMember
Segment Reporting Information
Revenue	(4,688)	(5,351)	(5,369)
Segment EBITDA	0	0	0
Depreciation and amortization	0	0	0
Third Party [Member]
Segment Reporting Information
Revenue	11,628,830	12,506,109	11,876,674
Third Party [Member] | Specialty
Segment Reporting Information
Revenue	1,505,340	1,459,396	1,472,956
Third Party [Member] | NorthAmerica
Segment Reporting Information
Revenue	4,631,306	5,208,589	5,181,964
Third Party [Member] | Europe
Segment Reporting Information
Revenue	5,492,184	5,838,124	5,221,754
Third Party [Member] | us-gaap_IntersegmentEliminationMember
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member]
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member] | Specialty
Segment Reporting Information
Revenue	3,655	4,646	4,724
Intersegment [Member] | NorthAmerica
Segment Reporting Information
Revenue	1,033	705	645
Intersegment [Member] | Europe
Segment Reporting Information
Revenue	0	0	0
Intersegment [Member] | us-gaap_IntersegmentEliminationMember
Segment Reporting Information
Revenue	$ (4,688)	$ (5,351)	$ (5,369)