v3.4.0.3
Condensed Consolidating Financial Information - Guarantor Subsidiaries - Condensed Consolidating Statements of Comprehensive Income (Loss) (Detail) - USD ($)
$ in Thousands
 3 Months Ended
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.