Annual report pursuant to Section 13 and 15(d)

Income Taxes - Deferred Tax Assets and Liabilities (Details)

v3.7.0.1
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Deferred Tax Assets:        
Goodwill $ 42,082 $ 39,172    
Net operating loss carryforwards 346,768 243,865    
Tax credit carryforwards 1,597 1,597    
Start-up costs 857 988    
Stock-based compensation 5,853 4,703    
Terminal leases 2,603 3,859    
Capitalized research and development 11,394 8,096    
Accrued compensation 4,419 2,546    
Inventory capitalization 3,227 2,046    
Allowance for doubtful accounts 800 567    
Other 2,363 1,569    
Deferred tax assets 421,963 309,008    
Deferred Tax Liabilities:        
Prepaid expenses (1,724) (1,338)    
Property, plant and equipment (61,431) (65,398)    
Intangibles (3,591) (3,909)    
Deferred revenue (3,454) 0    
Convertible debt (5,797) (3,626)    
Unrealized gain (loss) on available for sale investments 874 (1,752)    
Other (2,084) (2,007)    
Deferred tax liabilities (77,207) (78,030)    
Net deferred tax assets (liabilities) 344,756 230,978    
Valuation allowance (365,035) (250,164) $ (136,547) $ (76,916)
Net deferred taxes $ (20,279) $ (19,186)