XML 31 R21.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes (Tables)
3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense (Benefit)
 
 
Three Months Ended March 31,
 
 
2018
 
2017
 
 
 
 
 
 
 
(in thousands, except percentages)
Benefit from income taxes
 
$
(1,644
)
 
$
(9,233
)
Effective tax rate
 
(1.2
)%
 
(12.5
)%