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Business Segments, Geographic Data, and Sales by Major Customers - Additional Information (Detail) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) Segment Customer | Dec. 31, 2017 Segment Customer | Mar. 15, 2018 Store
Segment Reporting Information [Line Items] |  |  |  |
Number of reporting segments | Segment |  | 3 | 3 |
Toys "R" Us |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Pre and post-petition gross accounts receivable |  | $ 35.1 |  |
Pre-petition consolidated accounts receivable, reserved |  | $ 22.5 |  |
Toys "R" Us | United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of stores | Store |  |  |  | 735
Subsequent Event | Toys "R" Us |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Claim filed with insurance carrier | $ 12.0 |  |  |
Proceeds from post-petition consolidated accounts receivable | 0.6 |  |  |
Post and pre-petition consolidated accounts receivable, net | $ 22.5 |  |  |
Net Accounts Receivable | Customer Concentration Risk |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of major customers | Customer |  | 3 | 3 |
Net Accounts Receivable | Toys "R" Us | Customer Concentration Risk |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Concentration risk percentage |  | 29.40% | 26.40% |
Net Accounts Receivable | Three Largest Customers | Customer Concentration Risk |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Concentration risk percentage |  | 58.40% | 60.60% |

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