v3.4.0.3

Condensed Consolidating Financial Information - Guarantor Subsidiaries - Condensed Consolidating Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Condensed Financial Statements, Captions [Line Items] |  |  |
Net (loss) earnings |  | $ (8,932) | $ 10,363
Unrealized gain on short-term investments |  | 807 | 139
Changes in pension plan asset and benefit obligations |  | 1 |
Other unrealized gain |  |  | 24
Tax effect of preceding gains, losses or changes |  | (332) | (55)
Total Comprehensive Income (Loss) |  | (8,456) | 10,471
Parent Company Only (issuer) [Member] |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net (loss) earnings |  | (8,932) | 10,363
Unrealized gain on short-term investments |  | 807 | 139
Changes in pension plan asset and benefit obligations |  | 1 |
Other unrealized gain |  |  | 24
Tax effect of preceding gains, losses or changes |  | (332) | (55)
Total Comprehensive Income (Loss) |  | (8,456) | 10,471
Guarantor Subsidiaries [Member] |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net (loss) earnings | [1] | 5,054 | 6,131
Total Comprehensive Income (Loss) | [1] | 5,054 | 6,131
Eliminations [Member] |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net (loss) earnings |  | (5,054) | (6,131)
Total Comprehensive Income (Loss) |  | $ (5,054) | $ (6,131)
[1] | Foreign subsidiaries represent minor subsidiaries and are included in the guarantor subsidiaries' amounts.

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