Accrued Expenses and Other Current Liabilities (Other Disclosures) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended	3 Months Ended
	Aug. 06, 2012 Executive Chairman	Sep. 30, 2012 Executive Chairman	Dec. 31, 2013 Chief Operating Officer
Severance and restructuring accruals:
Continuation of base salary, in weeks	616 days
Continuation of benefits, in months	18 months
Estimated charge related to separation agreement		$ 1.1	$ 0.5