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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2020
Income Tax Disclosure [Abstract]  
Reconciliation of Unrecognized Tax Benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
2020
 (in thousands)
Balance at January 1, 2020$5,010  
Additions based on tax positions related to current year286  
Reductions for tax positions of prior years(428) 
Balance at June 30, 2020$4,868