Goodwill and Other Intangibles - Schedule of Other Intangibles (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 3,380,535	$ 3,508,360
Accumulated Amortization	(1,259,231)	(1,166,478)
Net Carrying Amount	2,121,304	2,341,882
Trade names and trademarks—indefinite lived
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amounts	467,896	496,306
Net Carrying Amount	$ 467,896	496,306
Customer and vendor relationships
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted- Avg Useful Lives (Years)	17 years 2 months 12 days
Gross Carrying Amounts	$ 2,613,634	2,698,327
Accumulated Amortization	(1,026,303)	(943,537)
Net Carrying Amount	$ 1,587,331	1,754,790
Trade names and trademarks—other
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted- Avg Useful Lives (Years)	13 years 2 months 12 days
Gross Carrying Amounts	$ 5,265	5,384
Accumulated Amortization	(3,064)	(2,877)
Net Carrying Amount	$ 2,201	2,507
Software
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted- Avg Useful Lives (Years)	5 years 10 months 24 days
Gross Carrying Amounts	$ 232,182	242,783
Accumulated Amortization	(186,554)	(180,839)
Net Carrying Amount	$ 45,628	61,944
Non-compete agreements
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted- Avg Useful Lives (Years)	4 years
Gross Carrying Amounts	$ 61,558	65,560
Accumulated Amortization	(43,310)	(39,225)
Net Carrying Amount	$ 18,248	$ 26,335