Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales
Product Sales	$ 1,957,879	$ 1,865,884	$ 1,930,497
Service Sales	550,378	529,563	555,486
Net Sales	2,508,257	2,395,447	2,485,983
Cost of sales
Products Cost of Sales	767,753	744,867	810,547
Service Cost of Sales	304,917	298,587	316,686
Gross profit	1,435,587	1,351,993	1,358,750
Research and development	119,968	119,076	123,297
Selling, general and administrative	732,622	700,810	728,582
Amortization	36,052	30,951	29,185
Interest Expense	28,026	27,451	24,537
Restructuring Charges	6,235	11,148	5,915
Other Charges (Income), Net	8,491	(867)	2,230
Earnings Before Taxes	504,193	463,424	445,004
Provision for taxes	119,823	110,604	106,763
Net earnings	$ 384,370	$ 352,820	$ 338,241
Basic earnings per common share:
Net earnings	$ 14.49	$ 12.75	$ 11.71
Weighted average number of common shares	26,517,768	27,680,918	28,890,771
Diluted earnings per common share:
Net earnings	$ 14.22	$ 12.48	$ 11.44
Weighted average number of common and common equivalent shares	27,023,905	28,269,615	29,571,308

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