Interim Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net sales
Products	$ 470,605	$ 449,702	$ 883,897	$ 862,606
Service	137,681	132,355	264,063	255,152
Total net sales	608,286	582,057	1,147,960	1,117,758
Cost of sales
Products	183,322	183,127	349,179	347,793
Service	77,388	76,018	151,298	148,248
Gross profit	347,576	322,912	647,483	621,717
Research and development	30,701	29,794	59,674	58,255
Selling, general and administrative	187,798	174,808	356,719	347,846
Amortization	8,655	7,634	17,079	15,162
Interest expense	6,872	6,942	13,452	13,667
Restructuring Charges	2,205	1,720	3,085	2,627
Other charges (income), net	8,173	(33)	7,889	(850)
Earnings before taxes	103,172	102,047	189,585	185,010
Provision for taxes	23,584	24,490	44,323	44,402
Net earnings	$ 79,588	$ 77,557	$ 145,262	$ 140,608
Basic earnings per common share:
Net earnings	$ 2.99	$ 2.79	$ 5.42	$ 5.03
Weighted average number of common shares	26,631,015	27,843,905	26,781,154	27,978,814
Diluted earnings per common share:
Net earnings	$ 2.93	$ 2.73	$ 5.32	$ 4.91
Weighted average number of common and common equivalent shares	27,143,284	28,460,336	27,283,012	28,611,637
Comprehensive Income, Net of Tax (Note 9)	$ 56,630	$ 99,337	$ 129,136	$ 156,132