CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales
Product sales	$ 521,815	$ 491,056	$ 1,032,187	$ 953,506
Service sales	130,637	106,638	245,695	212,741
Total net sales	652,452	597,694	1,277,882	1,166,247
Cost of sales
Cost of product sales	350,758	330,451	699,507	650,024
Cost of service sales	85,491	69,558	161,097	138,912
Total cost of sales	436,249	400,009	860,604	788,936
Gross profit	216,203	197,685	417,278	377,311
Research and development expenses	17,621	14,851	34,745	31,016
Selling expenses	37,047	37,202	75,295	72,006
General and administrative expenses	84,885	85,053	166,780	173,388
Operating income	76,650	60,579	140,458	100,901
Interest expense	(8,988)	(9,342)	(18,044)	(18,005)
Other income, net	64	200	118	645
Earnings from continuing operations before income taxes	67,726	51,437	122,532	83,541
Provision for income taxes	21,917	16,376	38,271	26,335
Earnings from continuing operations	45,809	35,061	84,261	57,206
Discontinued operations, net of taxes
Loss from discontinued operations	(4,994)	(1,691)	(8,282)	(2,893)
Loss on divestitures	(4,424)	0	(4,424)	0
Loss from discontinued operations	(9,418)	(1,691)	(12,706)	(2,893)
Net earnings	$ 36,391	$ 33,370	$ 71,555	$ 54,313
Basic earnings per share
Earnings from continuing operations (usd per share)	$ 0.96	$ 0.75	$ 1.75	$ 1.22
Earnings from discontinued operations (usd per share)	$ (0.20)	$ (0.04)	$ (0.26)	$ (0.06)
Total, Basic earnings per share (usd per share)	$ 0.76	$ 0.71	$ 1.49	$ 1.16
Diluted earnings per share
Earnings from continuing operations (usd per share)	$ 0.93	$ 0.74	$ 1.72	$ 1.20
Earnings from discontinued operations (usd per share)	$ (0.19)	$ (0.04)	$ (0.26)	$ (0.06)
Total, Diluted earnings per share (usd per share)	$ 0.74	$ 0.70	$ 1.46	$ 1.14
Dividends per share	$ 0.13	$ 0.10	$ 0.26	$ 0.19
Weighted average shares outstanding:
Basic (shares)	48,175	46,786	48,055	46,700
Diluted (shares)	49,239	47,507	49,160	47,478