Anuvu Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Contingently Issuable Shares (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Aug. 31, 2016
Liability Warrants
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Common stock price (in usd per share)	$ 6.46
Exercise price (in usd per share)	$ 11.5
Expected term (in years)	1 year 1 month 2 days
Expected volatility rate (as a percent)	34.00%
Risk free rate (as a percent)	0.90%
Expected dividend rate (as a percent)	0.00%
Discount for lack of marketability (as a percent)	0.00%
Price Per Share Scenario One \| UMG Recordings \| Common Stock
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Share Price (in usd per share)	$ 10	$ 10
Common stock price (in usd per share)	$ 6.46
Expected term (in years)	4 years 6 months 14 days
Expected volatility rate (as a percent)	46.00%
Expected dividend rate (as a percent)	0.00%
Discount for lack of marketability (as a percent)	20.50%
Price Per Share Scenario Two \| UMG Recordings \| Common Stock
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Share Price (in usd per share)	$ 12	$ 12
Common stock price (in usd per share)	$ 6.46
Expected term (in years)	6 years 5 months 10 days
Expected volatility rate (as a percent)	46.00%
Expected dividend rate (as a percent)	0.00%
Discount for lack of marketability (as a percent)	23.50%