Products, Major Customer, Concentration of Credit Risk (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Concentration Risk [Line Items]
Total property and equipment, cost	$ 182,950,000	$ 169,597,000
Domestic Country [Member]
Concentration Risk [Line Items]
Total property and equipment, cost	116,100,000	104,700,000
Revenue, Net	0.76	0.77	0.79
Foreign Country [Member]
Concentration Risk [Line Items]
Total property and equipment, cost	66,800,000	64,900,000
Revenue, Net	0.24	0.23	0.21
SLOVAKIA
Concentration Risk [Line Items]
Total property and equipment, cost	15,200,000	14,700,000
MEXICO
Concentration Risk [Line Items]
Total property and equipment, cost	46,400,000	44,600,000
ITALY
Concentration Risk [Line Items]
Total property and equipment, cost	5,000,000	5,400,000
GERMANY
Concentration Risk [Line Items]
Total property and equipment, cost	200,000	200,000
Hospira [Member]
Concentration Risk [Line Items]
Revenue, Net	0.42	0.44	0.54
Entity Wide Accounts Receivable Major Customer Percent	0.36	0.4600
Infusion Therapy Revenue [Member]
Concentration Risk [Line Items]
Revenue, Net	198,900,000	188,100,000	152,600,000
Critical Care Revenue [Member]
Concentration Risk [Line Items]
Revenue, Net	61,400,000	63,600,000	51,900,000
Oncology Revenue [Member]
Concentration Risk [Line Items]
Revenue, Net	$ 24,400,000	$ 18,300,000	$ 14,700,000