Segment Information - Operating Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 4,559,532	$ 4,736,833
Income before income taxes	178,945	211,512
Operating Segments
Segment Reporting Information [Line Items]
Net sales	4,559,532	4,736,833
Operating profit	276,446	321,476
Operating Segments | Automotive Parts
Segment Reporting Information [Line Items]
Net sales	2,581,636	2,622,345
Operating profit	142,314	179,228
Operating Segments | Industrial Parts
Segment Reporting Information [Line Items]
Net sales	1,509,841	1,635,423
Operating profit	113,933	121,028
Operating Segments | Business Products
Segment Reporting Information [Line Items]
Net sales	468,055	479,065
Operating profit	20,199	21,220
Other
Segment Reporting Information [Line Items]
Interest expense, net	(19,836)	(23,029)
Intangible asset amortization	(24,007)	(22,584)
Corporate expense	(52,742)	(30,237)
Other unallocated amounts	$ (916)	$ (34,114)