ACQUISITIONS (Details) (O & P company, USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013 company clinic	Sep. 30, 2012 company clinic
O & P company
Acquisitions
Number of O&P companies acquired	5	14
Number of patient care clinics operated by acquiree	12	21
Aggregate purchase price of O&P businesses	$ 8.0	$ 21.8
Promissory notes as a part of purchase price	0.7	7.6
Contingent consideration payable reported as other liabilities	1.2	1.6
Maximum term for payment of contingent consideration	2 years	5 years
Purchase price for acquisition paid in cash	5.6	12.6
Goodwill recorded related to acquisitions	$ 3.6	$ 13.6