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Related Party Transactions - Additional Information (Detail) - USD ($) |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 09, 2019 | Apr. 27, 2017 | Jan. 31, 2019 | Jul. 31, 2018 | Jan. 31, 2018 | Feb. 28, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Aug. 31, 2019 | Jul. 26, 2018 | Aug. 31, 2017 | Oct. 31, 2016 | Jul. 31, 2013
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  |  |  |  |  | $ 169,000 | $ (57,000) | $ 57,000 |  |  |  |  |  |
Common stock issued (in shares) | 5,853,002 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued, value | $ 4,200,000 |  |  |  |  |  | 4,214,000 |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | 52,658,000 | 140,974,000 |  |  |  |  |  |  |
3.25% Convertible Senior Notes Due 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | $ 0 | 27,974,000 |  |  |  | $ 8,000,000.0 |  |  |
Debt instrument, interest rate |  |  |  |  |  |  | 3.25% |  |  |  |  | 3.25% |  |  |
4.25% Convertible Senior Notes Due 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000.0
Debt instrument, interest rate |  |  |  |  |  |  | 4.25% |  |  |  |  | 4.25% | 4.25% |  | 4.25%
3.25% Convertible Senior Notes Due 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  |  |  |  |  |  |  |  |  |  | 49.00% |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | $ 50,753,000 | $ 0 |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  | 3.25% |  |  |  | 3.25% | 3.25% |  |  |
Interest rate if paid in cash |  |  |  |  |  |  |  |  |  |  | 3.25% |  |  |  |
Interest rate if paid in stock |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Paid in kind interest rate |  |  |  |  |  |  |  |  |  |  | 2.75% |  |  |  |
Non-employee directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued (in shares) |  | 13,319 | 328,230 |  | 249,480 | 94,102 | 54,704 | 41,580 |  |  |  |  |  |  |
Restricted stock issued, value |  | $ 100,000 | $ 500,000 |  | $ 600,000 | $ 500,000 | $ 100,000 |  |  |  |  |  |  |  |
Hong Kong Meisheng Cultural Co |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |
Hong Kong Meisheng Cultural Co | Non-employee directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued (in shares) |  | 13,319 |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued, value |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal fees and expenses |  |  |  |  |  |  | 1,500,000 | $ 1,300,000 | 2,200,000 |  |  |  |  |  |
Legal fees and reimbursable expense, payable |  |  |  |  |  |  | 100,000 | 200,000 |  |  |  |  |  |  |
Nantworks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related party |  |  |  |  |  |  |  |  |  | $ 1,200,000 |  |  |  |  |
Renewal fee paid |  |  |  |  |  |  |  |  |  | 800,000 |  |  |  |  |
Renewal fee payable, each period |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |
Related party, receivable |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  |
Rent expense |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |
Rent expense including common area maintenance and parking |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |
China Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  |  |  |  |  | $ 169,000 | (57,000) | $ 57,000 |  |  |  |  |  |
Joint venture, ownership percentage |  |  |  |  |  |  | 51.00% |  |  |  |  |  |  |  |
Hong Kong Meisheng Cultural Co |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  |  |  |  |  | $ 0 | 0 |  |  |  |  |  |  |
Joint venture, ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |
Joint Venture With Meisheng Culture & Creative Corp. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  |  |  |  |  |  | 51.00% |  |  |  |  |  |  | 50.00% |
Hong Kong Meisheng Cultural Co | Affiliated Entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related party |  |  |  |  |  |  | $ 18,100,000 | 3,600,000 |  |  |  |  |  |  |
Inventory related payments made to related party |  |  |  |  |  |  | 94,300,000 | 36,200,000 |  |  |  |  |  |  |
Hong Kong Affiliate, China Joint Venture Partner | Affiliated Entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued (in shares) |  | 3,660,891 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued, value |  | $ 19,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Oasis Management and Oasis Investments ll Master Fund Ltd. | 3.25% Convertible Senior Notes Due 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | 0 | 29,600,000.0 |  |  |  | $ 8,000,000 | $ 21,600,000 |  |
Common stock shares issued upon conversion of debt instrument, value |  |  |  | $ 8,000,000 |  |  |  |  |  |  |  |  |  |  |
Oasis Management and Oasis Investments ll Master Fund Ltd. | 4.25% Convertible Senior Notes Due 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 4.25% |  |
Oasis Management and Oasis Investments ll Master Fund Ltd. | After Modification Senior Notes (due 2018) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,600,000.0 |  |
Oasis Management and Oasis Investments ll Master Fund Ltd. | 3.25% Convertible Senior Notes Due 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | 37,600,000 | $ 0 |  |  | $ 8,000,000.0 |  |  |  |
Benefit Street Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | $ 25,800,000.0 |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  | 10.50% |  |  |  |  |  |  |  |
Interest rate if paid in cash |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |  |
Paid in kind interest rate |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |
Axar Capital Management |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt, face amount |  |  |  |  |  |  | $ 26,300,000.0 |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  | 10.50% |  |  |  |  |  |  |  |
Interest rate if paid in cash |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |  |
Paid in kind interest rate |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |
JAKKS Pacific | Hong Kong Meisheng Cultural Co | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  | 10.00% |  |  |  |  | 10.00% |  |  |  |  |  |  |  |
JAKKS Pacific | Nantworks | NantWorks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |

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