Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.3.1.900
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Taxes [Line Items]    
Net short-term deferred tax asset $ 13,600 $ 13,200
Net long-term deferred tax asset 2,800 3,800
Net short-term deferred tax liability 100 0
Net long-term deferred tax liability 73,322 57,601
Gross deferred tax assets related to state net operating loss carryforwards 280,600  
Valuation allowance related to certain state net operating loss carryforward deferred tax assets 5,900  
Liabilities recorded related to unrecognized tax benefits   6,900
Liabilities related to interest and penalties 1,100 1,200
Unorganized tax benefit that would affect income tax rate if recognized $ 2,600 $ 2,800
State and Local Jurisdiction [Member]    
Income Taxes [Line Items]    
Operating loss expiration date Net operating loss carryforwards that will expire between 2017 and 2035  
Operating loss expiration, beginning year 2017  
Operating loss expiration, ending year 2035  
State and Local Jurisdiction [Member] | Tax Year 2015 [Member]    
Income Taxes [Line Items]    
Income tax examination year 2015  
State and Local Jurisdiction [Member] | Tax Year 2006 [Member]    
Income Taxes [Line Items]    
Income tax examination year 2006  
U.S. Federal Income Tax Authority [Member] | Internal Revenue Service [Member] | Tax Year 2012 [Member]    
Income Taxes [Line Items]    
Income tax examination year 2012  
U.S. Federal Income Tax Authority [Member] | Internal Revenue Service [Member] | Tax Year 2015 [Member]    
Income Taxes [Line Items]    
Income tax examination year 2015