Charges Related To Restructuring Activities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 3,840	$ 4,100	$ 4,485		$ 4,485	$ 6,993	$ 6,993	$ 4,979	$ 0
Charges	4,077	2,090	2,240	1,884	8,407	6,998	9,336	11,395	10,534
Payments	(2,834)	(2,350)	(2,625)		(7,809)		(11,844)	(9,381)	(5,555)
Ending Balance	5,083	3,840	4,100		5,083		4,485	6,993	4,979
Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	3,491	3,755	3,986		3,986	5,211	5,211	4,905	0
Charges	3,915	1,297	1,521		6,733		8,282	6,775	8,352
Payments	(2,672)	(1,561)	(1,752)				(9,507)	(6,469)	(3,447)
Ending Balance	4,734	3,491	3,755		4,734		3,986	5,211	4,905
Product Line Discontinuance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	151	151	0	0
Charges	0	0	0				0	491	277
Payments	0	0	0				(151)	(340)	(277)
Ending Balance	0	0	0		0		0	151	0
Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	349	345	499		499	1,625	1,625	74	0
Charges	0	4	0				698	1,725	1,788
Payments	0	0	(154)				(1,824)	(174)	(1,714)
Ending Balance	349	349	345		349		499	1,625	74
Other [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	6	6	0	0
Charges	162	789	719				356	2,404	117
Payments	(162)	(789)	(719)				(362)	(2,398)	(117)
Ending Balance	0	0	0		0		0	6	0
NA/HME
Restructuring Reserve [Roll Forward]
Beginning Balance	2,030	2,488	2,805		2,805	3,747	3,747	3,092
Charges	3,041	845	803	1,210	4,689	4,837	5,922	4,247	4,759
Payments	(1,466)	(1,303)	(1,120)				(6,864)	(3,592)	(1,667)
Ending Balance	3,605	2,030	2,488		3,605		2,805	3,747	3,092
NA/HME | Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	2,030	2,488	2,805		2,805	3,747	3,747	3,092
Charges	3,041	845	803				5,405	4,242	4,755
Payments	(1,466)	(1,303)	(1,120)				(6,347)	(3,587)	(1,663)
Ending Balance	3,605	2,030	2,488		3,605		2,805	3,747	3,092
NA/HME | Product Line Discontinuance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				0	0	0
Payments	0	0	0				0	0	0
Ending Balance	0	0	0		0		0	0	0
NA/HME | Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				164	5	0
Payments	0	0	0				(164)	(5)	0
Ending Balance	0	0	0		0		0	0	0
NA/HME | Other [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				353	0	4
Payments	0	0	0				(353)	0	(4)
Ending Balance	0	0	0		0		0	0	0
IPG
Restructuring Reserve [Roll Forward]
Beginning Balance	759	397	92		92	0	0	71
Charges	591	658	1,059	36	2,308	237	267	35	123
Payments	(780)	(296)	(754)				(175)	(106)	(52)
Ending Balance	570	759	397		570		92	0	71
IPG | Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	759	397	92		92	0	0	71
Charges	429	394	340				267	35	123
Payments	(618)	(32)	(35)				(175)	(106)	(52)
Ending Balance	570	759	397		570		92	0	71
IPG | Product Line Discontinuance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				0	0	0
Payments	0	0	0				0	0	0
Ending Balance	0	0	0		0		0	0	0
IPG | Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				0	0	0
Payments	0	0	0				0	0	0
Ending Balance	0	0	0		0		0	0	0
IPG | Other [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	162	264	719		1,674		0	0	0
Payments	(162)	(264)	(719)				0	0	0
Ending Balance	0	0	0		0		0	0	0
Europe
Restructuring Reserve [Roll Forward]
Beginning Balance	702	870	1,089		1,089	595	595	1,816
Charges	69	583	378				1,640	2,093	5,466
Payments	(240)	(751)	(597)				(1,146)	(3,314)	(3,650)
Ending Balance	531	702	870		531		1,089	595	1,816
Europe | Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	702	870	1,089		1,089	595	595	1,742
Charges	69	58	378				1,640	817	3,288
Payments	(240)	(226)	(597)				(1,146)	(1,964)	(1,546)
Ending Balance	531	702	870		531		1,089	595	1,742
Europe | Product Line Discontinuance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	0	0				0	0	277
Payments	0	0	0				0	0	(277)
Ending Balance	0	0	0		0		0	0	0
Europe | Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	74
Charges	0	0	0				0	53	1,788
Payments	0	0	0				0	(127)	(1,714)
Ending Balance	0	0	0		0		0	0	74
Europe | Other [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	0	0	0
Charges	0	525	0				0	1,223	113
Payments	0	(525)	0				0	(1,223)	(113)
Ending Balance	0	0	0		0		0	0	0
Asia/Pacific
Restructuring Reserve [Roll Forward]
Beginning Balance	349	345	499		499	2,651	2,651	0
Charges	376	4	0				1,507	5,020	186
Payments	(348)	0	(154)				(3,659)	(2,369)	(186)
Ending Balance	377	349	345		377		499	2,651	0
Asia/Pacific | Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	869	869	0
Charges	376	0	0				970	1,681	186
Payments	(348)	0	0				(1,839)	(812)	(186)
Ending Balance	28	0	0		28		0	869	0
Asia/Pacific | Product Line Discontinuance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	151	151	0
Charges	0	0	0				0	491	0
Payments	0	0	0				(151)	(340)	0
Ending Balance	0	0	0		0		0	151	0
Asia/Pacific | Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	349	345	499		499	1,625	1,625	0
Charges	0	4	0				534	1,667	0
Payments	0	0	(154)				(1,660)	(42)	0
Ending Balance	349	349	345		349		499	1,625	0
Asia/Pacific | Other [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0		0	6	6	0
Charges	0	0	0				3	1,181	0
Payments	0	0	0				(9)	(1,175)	0
Ending Balance	$ 0	$ 0	$ 0		$ 0		$ 0	$ 6	$ 0