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Restricted Cash (Tables)
3 Months Ended
Mar. 31, 2018
Restricted Cash And Investments Abstract  
Restricted Cash Components and Its Secured Investments
March 31, December 31,
20182017
(In thousands)
Cash pledged as collateral to other financial institutions to secure:
Derivatives$1,980$1,980
Obligations under agreement of loans sold with recourse1,0501,050
$3,030$3,030