ACQUISITIONS InfuScience, Inc. (Details) (USD $)	3 Months Ended	12 Months Ended					17 Months Ended
	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 InfuScience, Inc.	Dec. 31, 2012 InfuScience, Inc.	Dec. 31, 2013 InfuScience, Inc.	Jul. 31, 2012 InfuScience, Inc. location		Jul. 31, 2012 Customer Relationships InfuScience, Inc.
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired								100.00%
Business Acquisition, Cost of Acquired Entity, Initial Purchase Price								$ 38,300,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High								3,000,000
Business combination, contingent consideration period			24 months
Number of locations								5
Business Combination Contingent Consideration, Initial Fair Value								2,900,000
Payments for Previous Acquisition							1,700,000
Business Combination, Contingent Consideration, Liability					1,300,000		1,300,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	2,900,000				100,000
Cash								23,000
Business Combination, Acquisition Related Costs		16,130,000	4,046,000	0
Accounts receivable								4,938,000
Inventories								586,000
Other current assets								371,000
Property and equipment								751,000
Identifiable intangible assets(1)								400,000	[1]	400,000
Other non-current assets								349,000
Current liabilities								(4,428,000)
Total identifiable net assets								2,990,000
Goodwill		605,121,000	350,810,000	312,387,000				38,429,000
Total cash and fair value of contingent consideration								41,419,000
Weighted- Average Useful Lives					5 months
Business Acquisition, Goodwill, Expected Tax Deductible Amount								7,700,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					46,700,000	16,500,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					$ 4,400,000	$ (1,700,000)

[1] Weighted- Average Useful Lives (Months) AmountsRecognized as ofAcquisition Date(in thousands)Customer relationships5 months $400Total identifiable intangible assets acquired $400