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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax [Line Items]        
Pretax income (loss) from continuing operations   $ 36,250,000 $ (31,366,000) $ (94,438,000)
Statutory U.S. federal income tax rate   35.00% 35.00% 35.00%
Effective tax rate increased   145.30%    
Increase in tax expense (benefit) due to revaluation   $ 52,700,000    
Decrease in effective tax rate due to settlement of a state income tax audit, percentage   (4.60%)    
Worthless stock deduction, tax benefit net     $ 3,700,000  
Worthless stock     11.90%  
Effective rate tax adjustment related to federal tax, amount     $ 2,100,000  
Valuation allowance release       116.30%
Valuation allowance release, amount       $ 109,800,000
Decrease in effective tax rate due to settlement of a federal income tax audit, percentage     6.70%  
Unrecognized tax benefits that would impact effective tax rate   $ 8,300,000 $ 6,600,000  
Short-term reserves   1,400,000    
Long-term reserves   7,200,000    
Interest and penalties   $ 1,900,000 2,000,000  
Unrecognized tax benefits, income tax penalties and interest benefit/expense recognized       $ (700,000)
Significant change in unrecognized tax benefits, nature of event description   Due to the expiration of various statutes of limitations    
Gross unrecognized tax benefits change range, minimum   $ 0    
Gross unrecognized tax benefits change range, maximum   2,000,000    
Deferred tax asset, gross   441,000,000 486,200,000  
Deferred tax liability, gross   5,300,000 8,900,000  
Illinois edge gross credits available to offset future state income tax   3,700,000    
Net deferred income tax assets   50,500,000    
Domestic Country [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards   215,500,000    
Foreign Country [Member]        
Income Tax [Line Items]        
Foreign tax credits   33,000,000    
State and Local Jurisdiction [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards   456,700,000    
Combined State [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards   33,000,000    
Separate State [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards   208,100,000    
Maximum [Member]        
Income Tax [Line Items]        
Unrecognized tax benefits, income tax penalties and interest benefit/expense recognized   $ 200,000 $ (100,000)  
Maximum [Member] | Domestic Country [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards, expiration year   2037    
Maximum [Member] | Foreign Country [Member]        
Income Tax [Line Items]        
Foreign tax credits, expiration year   2023    
Maximum [Member] | State and Local Jurisdiction [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards, expiration year   2037    
Minimum [Member] | Domestic Country [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards, expiration year   2034    
Minimum [Member] | Foreign Country [Member]        
Income Tax [Line Items]        
Foreign tax credits, expiration year   2022    
Minimum [Member] | State and Local Jurisdiction [Member]        
Income Tax [Line Items]        
Net operating loss carry forwards, expiration year   2018    
ASU 2016-09 [Member]        
Income Tax [Line Items]        
Recognition of an excess tax benefit and deficiency   $ 1,100,000    
Increase in annual effective tax rate due to recognition of an excess tax benefit and deficiency   3.20%    
Illinois [Member]        
Income Tax [Line Items]        
Increase in tax expense (benefit) due to revaluation   $ 1,700,000    
Decrease in effective tax rate due to settlement of a state income tax audit, percentage   (4.60%)    
Illinois [Member] | Maximum [Member]        
Income Tax [Line Items]        
Edge credits expiration year   2019    
Illinois [Member] | Minimum [Member]        
Income Tax [Line Items]        
Edge credits expiration year   2018    
Scenario Forecast [Member]        
Income Tax [Line Items]        
Statutory U.S. federal income tax rate 21.00%