Share-based Compensation - Red Kingdom - Summary of Non-vested Restricted Share Activity (Details)
|
12 Months Ended |
|
Dec. 31, 2017
$ / shares
shares
|
|---|
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
|
| Numbers of non-vested restricted shares, Beginning Balance | shares |
2,309,490
|
| Numbers of non-vested restricted shares, Vested | shares |
(2,309,490)
|
| Numbers of non-vested restricted shares, Ending Balance | shares |
693,333
|
| Weighted average grant date fair value, Beginning Balance | $ / shares |
$ 1.31
|
| Weighted average grant date fair value, Vested | $ / shares |
1.03
|
| Weighted average grant date fair value, Ending Balance | $ / shares |
$ 2.57
|
| Red Kingdom |
|
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
|
| Numbers of non-vested restricted shares, Beginning Balance | shares |
2,784,999
|
| Numbers of non-vested restricted shares, Vested | shares |
(811,667)
|
| Numbers of non-vested restricted shares, Forfeited | shares |
(1,329,999)
|
| Numbers of non-vested restricted shares, Transferred to the company | shares |
(643,333)
|
| Weighted average grant date fair value, Beginning Balance | $ / shares |
$ 0.60
|
| Weighted average grant date fair value, Vested | $ / shares |
0.60
|
| Weighted average grant date fair value, Forfeited | $ / shares |
0.60
|
| Weighted average grant date fair value, Transferred to the Company | $ / shares |
$ 0.60
|