Segment Information - Disaggregated Geographical Revenue by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 4,783,738	$ 3,823,227	$ 9,248,452	$ 7,915,753
North America
Disaggregation of Revenue [Line Items]
Net sales	3,546,337	2,946,775	6,808,541	6,088,986
Australasia
Disaggregation of Revenue [Line Items]
Net sales	506,372	379,017	986,391	751,067
Automotive Parts | North America
Disaggregation of Revenue [Line Items]
Net sales	2,076,562	1,715,567	3,939,367	3,447,063
Automotive Parts | Australasia
Disaggregation of Revenue [Line Items]
Net sales	388,708	282,797	756,577	555,721
Automotive Parts | Europe
Disaggregation of Revenue [Line Items]
Net sales	731,029	497,435	1,453,520	1,075,700
Industrial Parts | North America
Disaggregation of Revenue [Line Items]
Net sales	1,469,775	1,231,208	2,869,174	2,641,923
Industrial Parts | Australasia
Disaggregation of Revenue [Line Items]
Net sales	$ 117,664	$ 96,220	$ 229,814	$ 195,346