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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]  
Provision for Income Taxes The provision for income taxes consisted of the following components (in thousands):
Three Months Ended September 30, Nine Months Ended September 30, 
2018201720182017
Current
Federal
$(33)$(8,460)$(33)$(8,460)
State (39)(36)
Total provision
$(30)$(8,457)$(72)$(8,496)