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Charges Related To Restructuring Activities (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Mar. 31, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Restructuring Reserve [Roll Forward]                  
Beginning Balance $ 2,824,000 $ 4,466,000   $ 4,466,000 $ 4,485,000 $ 4,485,000 $ 6,993,000 $ 4,979,000 $ 0
Charges 689,000 240,000 $ 2,090,000 929,000 4,330,000 11,112,000 9,336,000 11,395,000 10,534,000
Payments (583,000) (1,882,000)       (11,131,000) (11,844,000) (9,381,000) (5,555,000)
Ending Balance 2,930,000 2,824,000   2,930,000   4,466,000 4,485,000 6,993,000 4,979,000
Severance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 2,824,000 4,209,000   4,209,000 3,986,000 3,986,000 5,211,000 4,905,000 0
Charges 689,000 239,000       9,841,000 8,282,000 6,775,000 8,352,000
Payments (583,000) (1,624,000)       (9,618,000) (9,507,000) (6,469,000) (3,447,000)
Ending Balance 2,930,000 2,824,000   2,930,000   4,209,000 3,986,000 5,211,000 4,905,000
Product Line Discontinuance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 0 0   0 0 0 151,000 0 0
Charges 0 0       0 0 491,000 277,000
Payments 0 0       0 (151,000) (340,000) (277,000)
Ending Balance 0 0   0   0 0 151,000 0
Contract Termination [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 0 257,000   257,000 499,000 499,000 1,625,000 74,000 0
Charges 0 1,000       15,000 698,000 1,725,000 1,788,000
Payments 0 (258,000)       (227,000) (1,824,000) (174,000) (1,714,000)
Ending Balance 0 0   0   257,000 499,000 1,625,000 74,000
Other [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 0 0   0 0 0 6,000 0 0
Charges 0 0       1,286,000 356,000 2,404,000 117,000
Payments 0 0       (1,286,000) (362,000) (2,398,000) (117,000)
Ending Balance 0 0   0   0 0 6,000 0
NA/HME                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 768,000 662,000   662,000 2,805,000 2,805,000 3,747,000 3,092,000  
Charges 491,000 199,000 845,000   1,648,000 4,404,000 5,922,000 4,247,000 4,759,000
Payments (381,000) (93,000)       (6,547,000) (6,864,000) (3,592,000) (1,667,000)
Ending Balance 878,000 768,000   878,000   662,000 2,805,000 3,747,000 3,092,000
NA/HME | Severance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 768,000 662,000   662,000 2,805,000 2,805,000 3,747,000 3,092,000  
Charges 491,000 199,000   690,000   4,404,000 5,405,000 4,242,000 4,755,000
Payments (381,000) (93,000)       (6,547,000) (6,347,000) (3,587,000) (1,663,000)
Ending Balance 878,000 768,000   878,000   662,000 2,805,000 3,747,000 3,092,000
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       0 164,000 5,000 0
Payments 0 0       0 (164,000) (5,000) 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       0 353,000 0 4,000
Payments 0 0       0 (353,000) 0 (4,000)
Ending Balance 0 0   0   0 0 0 0
IPG                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   148,000   148,000 92,000 92,000 0 71,000  
Charges 72,000   $ 658,000 72,000 1,717,000 1,924,000 267,000 35,000 123,000
Payments (63,000) (148,000)       (1,868,000) (175,000) (106,000) (52,000)
Ending Balance 9,000     9,000   148,000 92,000 0 71,000
IPG | Severance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   148,000   148,000 92,000 92,000 0 71,000  
Charges 72,000         1,163,000 267,000 35,000 123,000
Payments (63,000) (148,000)       (1,107,000) (175,000) (106,000) (52,000)
Ending Balance 9,000     9,000   148,000 92,000 0 71,000
IPG | Product Line Discontinuance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   0 0 0 0 0  
Charges 0         0 0 0 0
Payments 0 0       0 0 0 0
Ending Balance 0     0   0 0 0 0
IPG | Contract Termination [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   0 0 0 0 0  
Charges 0         0 0 0 0
Payments 0 0       0 0 0 0
Ending Balance 0     0   0 0 0 0
IPG | Other [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   0 0 0 0 0  
Charges 0         761,000 0 0 0
Payments 0 0       (761,000) 0 0 0
Ending Balance 0     0   0 0 0 0
Europe                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 211,000 421,000   421,000 1,089,000 1,089,000 595,000 1,816,000  
Charges 120,000 40,000       1,052,000 1,640,000 2,093,000 5,466,000
Payments (21,000) (250,000)       (1,720,000) (1,146,000) (3,314,000) (3,650,000)
Ending Balance 310,000 211,000   310,000   421,000 1,089,000 595,000 1,816,000
Europe | Severance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 211,000 421,000   421,000 1,089,000 1,089,000 595,000 1,742,000  
Charges 120,000 40,000       527,000 1,640,000 817,000 3,288,000
Payments (21,000) (250,000)       (1,195,000) (1,146,000) (1,964,000) (1,546,000)
Ending Balance 310,000 211,000   310,000   421,000 1,089,000 595,000 1,742,000
Europe | Product Line Discontinuance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 0 0   0 0 0 0 0  
Charges 0 0       0 0 0 277,000
Payments 0 0       0 0 0 (277,000)
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 74,000  
Charges 0 0       0 0 53,000 1,788,000
Payments 0 0       0 0 (127,000) (1,714,000)
Ending Balance 0 0   0   0 0 0 74,000
Europe | Other [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance 0 0   0 0 0 0 0  
Charges 0 0       525,000 0 1,223,000 113,000
Payments 0 0       (525,000) 0 (1,223,000) (113,000)
Ending Balance 0 0   0   0 0 0 0
Asia/Pacific                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   257,000   257,000 499,000 499,000 2,651,000 0  
Charges 6,000 1,000       754,000 1,507,000 5,020,000 186,000
Payments (6,000) (258,000)       (996,000) (3,659,000) (2,369,000) (186,000)
Ending Balance           257,000 499,000 2,651,000 0
Asia/Pacific | Severance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   0 0 0 869,000 0  
Charges 6,000 0       769,000 970,000 1,681,000 186,000
Payments (6,000) 0       (769,000) (1,839,000) (812,000) (186,000)
Ending Balance           0 0 869,000 0
Asia/Pacific | Product Line Discontinuance [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   0 0 0 151,000 0  
Charges 0 0       0 0 491,000 0
Payments 0 0       0 (151,000) (340,000) 0
Ending Balance           0 0 151,000 0
Asia/Pacific | Contract Termination [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   257,000   257,000 499,000 499,000 1,625,000 0  
Charges 0 1,000       15,000 534,000 1,667,000 0
Payments 0 (258,000)       (227,000) (1,660,000) (42,000) 0
Ending Balance           257,000 499,000 1,625,000 0
Asia/Pacific | Other [Member]                  
Restructuring Reserve [Roll Forward]                  
Beginning Balance   0   $ 0 $ 0 0 6,000 0  
Charges 0 0       0 3,000 1,181,000 0
Payments $ 0 $ 0       0 (9,000) (1,175,000) 0
Ending Balance           $ 0 $ 0 $ 6,000 $ 0