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Committed Lines of Credit
3 Months Ended
Mar. 31, 2017
Short-term Debt [Abstract]  
Committed Lines of Credit
COMMITTED LINES OF CREDIT
Avista Corp.
Avista Corp. has a committed line of credit with various financial institutions in the total amount of $400.0 million that expires in April 2021.
Borrowings outstanding and interest rates of borrowings (excluding letters of credit) under the Company’s revolving committed line of credit were as follows as of March 31, 2017 and December 31, 2016 (dollars in thousands):
 
March 31,
 
December 31,
 
2017
 
2016
Borrowings outstanding at end of period
$
105,000

 
$
120,000

Letters of credit outstanding at end of period
$
42,053

 
$
34,353

Average interest rates at end of period
1.74
%
 
1.50
%

As of March 31, 2017 and December 31, 2016, the borrowings outstanding under Avista Corp.'s committed line of credit were classified as short-term borrowings on the Condensed Consolidated Balance Sheet.
AEL&P
AEL&P has a committed line of credit in the amount of $25.0 million that expires in November 2019. As of March 31, 2017 and December 31, 2016, there were no borrowings or letters of credit outstanding under this committed line of credit.