STOCKHOLDERS' DEFICIT - OPTIONS GRANTED OUTSIDE CINEDIGM'S EQUITY INCENTIVE PLAN (Details)	1 Months Ended		3 Months Ended	6 Months Ended
	Oct. 31, 2013 employee $ / shares shares	Dec. 31, 2010 $ / shares shares	Sep. 30, 2017 shares	Sep. 30, 2017 shares
Class of Stock [Line Items]
Shares under option, granted (shares) | shares			0	0
Class A common stock | Chief Executive Officer
Class of Stock [Line Items]
Options exercise price range, lower (in dollars per share) | $ / shares		$ 15.0
Options exercise price range, upper (in dollars per share) | $ / shares		$ 50.0
Class A common stock | Chief Executive Officer | Stock option
Class of Stock [Line Items]
Number of shares authorized (shares) | shares		450,000
Gaiam Americas, Inc. and Gaiam, Inc. (GVE)
Class of Stock [Line Items]
Number of employees joining company following acquisition | employee	10
Shares under option, granted (shares) | shares	62,000
Weighted average exercise price per share, granted (in dollars per share) | $ / shares	$ 17.5
Gaiam Americas, Inc. and Gaiam, Inc. (GVE) | Stock option
Class of Stock [Line Items]
Aware expiration period	10 years