XML 74 R63.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes - Additional Information (Detail)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
examination
Jun. 30, 2016
USD ($)
Apr. 12, 2017
Dec. 31, 2016
USD ($)
Income Tax Contingency [Line Items]            
Tax examinations in process | examination     1      
Unrecognized tax benefits $ 700   $ 700     $ 600
Accrued unrecognized tax benefits interest and penalties 200   200     $ 200
Income tax reserve     0      
Income tax benefit $ (697) $ (781) (61) $ (1,941)    
7.875% senior secured notes due April 15, 2019 | Senior Notes            
Income Tax Contingency [Line Items]            
Income tax benefit     $ 600      
Interest on Senior Secured Notes (as a percent) 7.875% 7.875% 7.875% 7.875% 7.875% 7.875%