XML 22 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes Narrative (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Income Tax Narrative [Abstract]  
Tax Credit Recorded for IRS R&D Settlement $ 2.0sm_TaxCreditRecordedforIRSRDSettlement