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RATE REDUCTION BONDS AND VARIABLE INTEREST ENTITIES (Tables)
12 Months Ended
Dec. 31, 2020
Rate Reduction Bonds and Variable Interest Entity [Abstract]  
Summary of the Impact of Funding on the Balance Sheets and Income Statements The following tables summarize the impact of PSNH Funding on PSNH's balance sheets and income statements:
(Millions of Dollars)As of December 31,
Balance Sheet:20202019
Restricted Cash - Current Portion (included in Current Assets)$36.8 $32.5 
Restricted Cash - Long-Term Portion (included in Other Long-Term Assets)2.1 3.2 
Securitized Stranded Cost (included in Regulatory Assets)522.1 565.3 
Other Regulatory Liabilities (included in Regulatory Liabilities)9.1 5.6 
Accrued Interest (included in Other Current Liabilities)8.0 8.6 
Rate Reduction Bonds - Current Portion43.2 43.2 
Rate Reduction Bonds - Long-Term Portion496.9 540.1 
(Millions of Dollars)
Income Statement:
For the Years Ended December 31,
20202019
Amortization of RRB Principal (included in Amortization of Regulatory Assets, Net)$43.2 $43.0 
Interest Expense on RRB Principal (included in Interest Expense)19.7 21.1