Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended								0 Months Ended	12 Months Ended				10 Months Ended	12 Months Ended
	Sep. 15, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Lifestyle Research Center	Dec. 31, 2012 Lifestyle Research Center	Dec. 31, 2011 Lifestyle Research Center	Dec. 31, 2013 MS Partnership	Dec. 31, 2009 MS Partnership	Jul. 02, 2013 Martha Stewart	Dec. 31, 2012 Alexis Stewart	Dec. 31, 2011 Alexis Stewart	Dec. 31, 2013 Martha Stewart and Charles Koppleman Family Members	Dec. 31, 2011 Martha Stewart and Charles Koppleman Family Members	Oct. 21, 2013 JCP	Dec. 31, 2012 JCP
Related Party Transaction [Line Items]
Talent Compensation Reduction										$ 0.2
Talent compensation										1.8
License Cost Reduction	0.3
Annual fee	1.7
Approved and documented household expenses					0.1
Reimbursements for approved and documented household expenses					0.03	0.10
Reimbursements for business activities					0.02		0
Reimbursements for insurance policy premiums									0.3
Tax on reimbursements for insurance policy premiums								0.3
Tax gross-up included on balance sheet		0.3	0.3
Expenses from related parties											0	0.3	0.4	0.3
Charitable contributions to related parties		0.02	0.02	0.03
Investment in company's outstanding common stock															16.40%
Revenue from related parties															$ 11.6	$ 8.1