Charges Related To Restructuring Activities Narrative (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Charges	$ 240,000	$ 2,240,000	$ 11,112,000	$ 9,336,000	$ 11,395,000	$ 10,534,000
Restructuring and Related Activities, Expected Payout Period			12 months
Payments	1,882,000		11,131,000	11,844,000	9,381,000	5,555,000
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	239,000		9,841,000	8,282,000	6,775,000	8,352,000
Payments	1,624,000		9,618,000	9,507,000	6,469,000	3,447,000
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Charges	1,000		15,000	698,000	1,725,000	1,788,000
Payments	258,000		227,000	1,824,000	174,000	1,714,000
Product Line Discontinuance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	0	491,000	277,000
Payments	0		0	151,000	340,000	277,000
Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		1,286,000	356,000	2,404,000	117,000
Payments	0		1,286,000	362,000	2,398,000	117,000
Europe
Restructuring Cost and Reserve [Line Items]
Charges	40,000		1,052,000	1,640,000	2,093,000	5,466,000
Payments	250,000		1,720,000	1,146,000	3,314,000	3,650,000
Europe | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	40,000		527,000	1,640,000	817,000	3,288,000
Payments	250,000		1,195,000	1,146,000	1,964,000	1,546,000
Europe | Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	0	53,000	1,788,000
Payments	0		0	0	127,000	1,714,000
Europe | Product Line Discontinuance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	0	0	277,000
Payments	0		0	0	0	277,000
Europe | Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		525,000	0	1,223,000	113,000
Payments	0		525,000	0	1,223,000	113,000
Asia/Pacific
Restructuring Cost and Reserve [Line Items]
Charges	1,000		754,000	1,507,000	5,020,000	186,000
Payments	258,000		996,000	3,659,000	2,369,000	186,000
Asia/Pacific | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		769,000	970,000	1,681,000	186,000
Payments	0		769,000	1,839,000	812,000	186,000
Asia/Pacific | Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Charges	1,000		15,000	534,000	1,667,000	0
Payments	258,000		227,000	1,660,000	42,000	0
Asia/Pacific | Product Line Discontinuance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	0	491,000	0
Payments	0		0	151,000	340,000	0
Asia/Pacific | Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	3,000	1,181,000	0
Payments	0		0	9,000	1,175,000	0
NA/HME
Restructuring Cost and Reserve [Line Items]
Charges	199,000	803,000	4,404,000	5,922,000	4,247,000	4,759,000
Payments	93,000		6,547,000	6,864,000	3,592,000	1,667,000
NA/HME | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	199,000		4,404,000	5,405,000	4,242,000	4,755,000
Payments	93,000		6,547,000	6,347,000	3,587,000	1,663,000
NA/HME | Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	164,000	5,000	0
Payments	0		0	164,000	5,000	0
NA/HME | Product Line Discontinuance [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	0	0	0
Payments	0		0	0	0	0
NA/HME | Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges	0		0	353,000	0	4,000
Payments	0		0	353,000	0	4,000
IPG
Restructuring Cost and Reserve [Line Items]
Charges	0	1,059,000	1,924,000	267,000	35,000	123,000
Payments	148,000		1,868,000	175,000	106,000	52,000
IPG | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Charges			1,163,000	267,000	35,000	123,000
Payments	148,000		1,107,000	175,000	106,000	52,000
IPG | Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Charges			0	0	0	0
Payments	0		0	0	0	0
IPG | Product Line Discontinuance [Member]
Restructuring Cost and Reserve [Line Items]
Charges			0	0	0	0
Payments	0		0	0	0	0
IPG | Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges			761,000	0	0	0
Payments	$ 0		$ 761,000	$ 0	$ 0	$ 0