Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share (Details)

v3.8.0.1
Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 27, 2017
Jul. 27, 2016
Mar. 31, 2017
Aug. 31, 2016
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Net loss – basic and diluted         $ (44,130) $ (38,160) $ (169,741) $ (40,572)  
Weighted average shares outstanding – basic and diluted         85,496,000 78,127,000 85,468,000 78,385,000  
Net loss per share – basic and diluted (in dollars per share)         $ (0.52) $ (0.49) $ (1.99) $ (0.52)  
Less: adjustment for change in fair value on warrants liability for diluted EPS after assumed exercise of warrants liability         $ 0 $ 0 $ 0 $ 0  
Net loss for dilutive EPS         $ (44,130) $ (38,160) $ (169,741) $ (40,572)  
Weighted average common shares outstanding - basic (in shares)         85,496,000 78,127,000 85,468,000 78,385,000  
Dilutive effect of stock options and warrants (in shares)         0 0 0 0  
Weighted average common shares outstanding - diluted (in shares)         85,496,000 78,127,000 85,468,000 78,385,000  
Net loss per share - basic (in usd per share)         $ (0.52) $ (0.49) $ (1.99) $ (0.52)  
Net loss per share - diluted (in usd per share)         (0.52) $ (0.49) $ (1.99) $ (0.52)  
Common Stock | UMG Recordings - share price threshold | Price Per Share Scenario One                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Shares issued in period (in shares)             500,000   500,000
Common Stock | UMG Recordings - share price threshold | Price Per Share Scenario Two                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Shares issued in period (in shares)             400,000   400,000
Common Stock | UMG Recordings                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Shares issued in period (in shares)       1,800,000          
Common Stock | UMG Recordings | Price Per Share Scenario One                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Shares issued in period (in shares)     500,000 500,000.0          
Share Price (in usd per share)     $ 10.00 $ 10 10.00   $ 10.00   $ 10.00
Common Stock | UMG Recordings | Price Per Share Scenario Two                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Shares issued in period (in shares)     400,000 400,000.0          
Share Price (in usd per share)     $ 12.00 $ 12 $ 12.00   $ 12.00   $ 12.00
Emerging Markets Communications LLC                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Deferred compensation to be paid   $ 25,000              
Employee stock options                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         5,525,000 6,139,000 6,060,000 5,919,000  
Restricted stock units                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         1,474,000 602,000 1,625,000 397,000  
Equity warrants                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         351,000 1,164,000 711,000 1,165,000  
Public SPAC Warrants                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         6,173,000 6,173,000 6,173,000 6,173,000  
2.75% convertible senior notes due 2035                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         4,447,000 4,447,000 4,447,000 4,447,000  
EMC deferred consideration                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         5,536,000 0 5,536,000 0  
Contingently issuable shares                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Antidilutive securities excluded from computation of net income (loss) per share (in shares)         900,000 0 900,000 0  
Public SPAC Warrants | Quotes prices in active markets (Level 1)                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Number of warrants (in shares)         6,173,228   6,173,228    
Subsequent Event | Emerging Markets Communications LLC                  
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                  
Common stock issued for acquisition (in shares) 5,080,049