Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales	$ 740,055	$ 762,704	$ 767,140
Cost of sales	335,998	350,287	361,297
Gross profit	404,057	412,417	405,843
Selling and administrative expense	293,942	310,730	302,469
Research and development expense	27,779	25,831	28,214
Medical device excise tax	5,588	5,949	0
Other expense	23,962	13,399	9,950
Total operating expenses	351,271	355,909	340,633
Income from operations	52,786	56,508	65,210
Loss on early extinguishment of debt	0	263	0
Interest expense	6,111	5,613	5,730
Income before income taxes	46,675	50,632	59,480
Provision for income taxes	14,483	14,693	18,999
Net income	32,192	35,939	40,481
Earnings per share:
Basic (per share)	$ 1.17	$ 1.30	$ 1.43
Diluted (per share)	$ 1.16	$ 1.28	$ 1.41
Dividends per share of common stock	$ 0.80	$ 0.65	$ 0.60
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(15,069)	(1,193)	1,995
Pension liability	(18,781)	18,175	1,387
Cash flow hedging gain (loss)	7,393	(404)	(6,507)
Other comprehensive income, before tax	5,735	52,517	37,356
Provision (benefit) for income taxes related to items of other comprehensive income	(4,207)	6,569	(1,892)
Comprehensive income	$ 9,942	$ 45,948	$ 39,248