Segment and Geographic Information - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Segment Reporting Information
Net income	$ 118,770	$ 152,105	$ 264,749	$ 251,168
Less: net (loss) income attributable to continuing noncontrolling interest	(22)	1,352	718	2,367
Less: net income attributable to discontinued noncontrolling interest	0	192	103	192
Segment EBITDA	291,174	358,696	613,106	678,589
Depreciation and amortization	72,930	76,154	$ 144,309	152,361
Number of operating segments			4
Number of reportable segments			3
North America [Member]
Segment Reporting Information
Segment EBITDA	149,554	190,048	$ 360,992	366,684
Depreciation and amortization	25,050	22,425	$ 48,198	44,664
Number of reportable segments			1
Europe [Member]
Segment Reporting Information
Segment EBITDA	89,387	116,281	$ 167,649	221,579
Depreciation and amortization	40,493	46,774	81,588	93,785
Specialty [Member]
Segment Reporting Information
Segment EBITDA	52,233	52,367	84,465	90,326
Depreciation and amortization	7,387	6,955	14,523	13,912
Intersegment Eliminations [Member]
Segment Reporting Information
Segment EBITDA	0	0	0	0
Depreciation and amortization	$ 0	$ 0	$ 0	$ 0