Interim Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues	$ 924,351	$ 690,673	$ 1,728,741	$ 1,339,835
Gross profit	536,904	397,970	1,008,600	772,379
Research and development	42,603	31,193	81,875	65,580
Selling, general and administrative	239,045	190,134	460,797	388,878
Amortization	16,218	13,889	30,102	27,887
Interest expense	10,439	9,582	19,910	19,801
Restructuring Charges	876	860	2,069	2,765
Other charges (income), net	(2,661)	(2,943)	(1,951)	(6,286)
Earnings before taxes	230,384	155,255	415,798	273,754
Provision for taxes	45,621	28,693	81,372	49,077
Net earnings	$ 184,763	$ 126,562	$ 334,426	$ 224,677
Basic earnings per common share:
Net earnings	$ 7.97	$ 5.29	$ 14.37	$ 9.37
Weighted average number of common shares	23,191,155	23,940,278	23,277,636	23,984,055
Diluted earnings per common share:
Net earnings	$ 7.85	$ 5.22	$ 14.17	$ 9.25
Weighted average number of common and common equivalent shares	23,521,793	24,228,989	23,603,805	24,291,321
Comprehensive Income, Net of Tax (Note 9)	$ 193,915	$ 128,658	$ 366,759	$ 202,745
Product [Member]
Revenues	736,486	537,113	1,363,401	1,026,447
Cost of Goods and Services Sold	294,053	217,008	539,323	408,631
Service [Member]
Revenues	187,865	153,560	365,340	313,388
Cost of Goods and Services Sold	$ 93,394	$ 75,695	$ 180,818	$ 158,825