COMMITMENTS AND CONTINGENCIES PBM Services Payment Delay (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
Sep. 30, 2012
Loss Contingencies [Line Items]
Loss ContingencyReceivable, Approximate Payment Period Behind	2 months
Large PBM Services customer late payment	$ 7.8
Loss Contingency, Receivable	$ 0.3

Loss ContingencyReceivable, Approximate Payment Period Behind

No definition available.

Name:	bios_LossContingencyreceivableApproximatePaymentPeriodBehind
Namespace Prefix:	bios_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration