Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Sales	$ 1,771,647	$ 1,651,415	$ 5,046,652	$ 4,451,420
Cost of Goods and Services Sold	1,335,105	1,250,145	3,821,214	3,341,493
Gross profit	436,542	401,270	1,225,438	1,109,927
Operating expenses:
Selling and marketing	149,759	128,929	419,621	369,495
Research and development	77,337	64,181	220,836	197,741
General and administrative	100,794	90,639	297,822	262,206
Total operating expenses	327,890	283,749	938,279	829,442
Operating income	130,254	138,869	347,312	344,602
Non-operating expense:
Interest expense	19,733	19,823	60,772	37,087
Equity in loss of other affiliates	4,072	111	5,133	25,576
Other income, net	(1,711)	(4,124)	(5,483)	(27,660)
Income before income taxes	108,160	123,059	286,890	309,599
Provision for income taxes	19,772	27,530	61,961	65,816
Net income	88,388	95,529	224,929	243,783
Net loss attributable to noncontrolling interest	0	0	100	0
Net income	$ 88,388	$ 95,529	$ 225,029	$ 243,783
Basic net income per share (in dollars per share)	$ 1.44	$ 1.54	$ 3.67	$ 3.88
Diluted net income per share (in dollars per share)	$ 1.42	$ 1.50	$ 3.62	$ 3.78
Weighted average shares outstanding:
Basic (in shares)	61,480	62,207	61,394	62,894
Diluted (in shares)	62,265	63,546	62,152	64,550
Income from financial services
Sales	$ 21,602	$ 21,348	$ 60,153	$ 64,117