Segment Information - Disaggregated Geographical Revenue by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 4,722,922	$ 4,095,906	$ 14,131,281	$ 12,101,725
North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	3,992,020	3,788,729	11,827,213	11,236,209
Australasia [Member]
Disaggregation of Revenue [Line Items]
Net sales	298,797	307,177	903,600	865,516
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	432,105	0	1,400,468	0
Automotive [Member]
Disaggregation of Revenue [Line Items]
Net sales	2,649,716	2,149,865	7,950,176	6,271,233
Automotive [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,918,814	1,842,688	5,646,108	5,405,717
Automotive [Member] | Australasia [Member]
Disaggregation of Revenue [Line Items]
Net sales	298,797	307,177	903,600	865,516
Automotive [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	432,105	0	1,400,468	0
Industrial [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,577,329	1,456,651	4,727,938	4,359,819
Industrial [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,577,329	1,456,651	4,727,938	4,359,819
Industrial [Member] | Australasia [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Business Products [Member]
Disaggregation of Revenue [Line Items]
Net sales	495,877	489,390	1,453,167	1,470,673
Business Products [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	495,877	489,390	1,453,167	1,470,673
Business Products [Member] | Australasia [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Business Products [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0