Segment Reporting (Schedule of Operating Profit by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information
Net sales	$ 1,107,250	$ 1,054,544	$ 2,152,840	$ 2,022,573
Cost of sales	837,229	788,099	1,631,070	1,532,222
Gross profit	270,021	266,445	521,770	490,351
Selling, general and administrative expenses	182,217	175,841	352,649	342,136
Operating profit	87,804	90,604	169,121	148,215
OEM Segment
Segment Reporting Information
Net sales	839,559	796,124	1,663,114	1,554,436
Aftermarket Segment
Segment Reporting Information
Net sales	267,691	258,420	489,726	468,137
Operating Segments | OEM Segment
Segment Reporting Information
Net sales	839,559	796,124	1,663,114	1,554,436
Cost of sales	665,422	626,330	1,311,902	1,237,313
Gross profit	174,137	169,794	351,212	317,123
Selling, general and administrative expenses	122,453	119,232	237,555	233,724
Operating profit	51,684	50,562	113,657	83,399
Operating Segments | Aftermarket Segment
Segment Reporting Information
Net sales	267,691	258,420	489,726	468,137
Cost of sales	171,807	161,769	319,168	294,909
Gross profit	95,884	96,651	170,558	173,228
Selling, general and administrative expenses	59,764	56,609	115,094	108,412
Operating profit	$ 36,120	$ 40,042	$ 55,464	$ 64,816