XML 37 R63.htm IDEA: XBRL DOCUMENT v3.20.1
RATE REDUCTION BONDS AND VARIABLE INTEREST ENTITIES - Summary of the Impact of Funding on the Balance Sheets (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) $ 5,563,400 $ 5,514,700
Regulatory Liabilities 3,668,158 3,658,042
Accrued Interest (included in Other Current Liabilities) 611,706 676,685
Rate Reduction Bonds - Current Portion 43,210 43,210
Rate Reduction Bonds - Long-Term Portion 518,517 540,122
Securitized Stranded Costs    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 554,500 565,300
Other Regulatory Assets    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 136,500 125,400
Special Deposits    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash 39,000 52,500
Other Long-Term Assets    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash 3,200 3,200
PSNH    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 946,300 945,800
Regulatory Liabilities 411,959 413,381
Accrued Interest (included in Other Current Liabilities) 39,636 32,736
Rate Reduction Bonds - Current Portion 43,210 43,210
Rate Reduction Bonds - Long-Term Portion 518,517 540,122
PSNH | VIE    
Condensed Balance Sheet Statements, Captions [Line Items]    
Rate Reduction Bonds - Current Portion 43,200 43,200
Rate Reduction Bonds - Long-Term Portion 518,500 540,100
PSNH | Securitized Stranded Costs    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 554,500 565,300
PSNH | Securitized Stranded Costs | VIE    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 554,500 565,300
PSNH | Other Regulatory Assets    
Condensed Balance Sheet Statements, Captions [Line Items]    
Securitized Stranded Cost (included in Regulatory Assets) 13,800 14,700
PSNH | Other Regulatory Assets | VIE    
Condensed Balance Sheet Statements, Captions [Line Items]    
Regulatory Liabilities 6,000 5,600
Accrued Interest (included in Other Current Liabilities) 3,300 8,600
PSNH | Special Deposits    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash 16,600 32,500
PSNH | Special Deposits | VIE    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash 16,600 32,500
PSNH | Other Long-Term Assets    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash 3,200 3,200
PSNH | Other Long-Term Assets | VIE    
Condensed Balance Sheet Statements, Captions [Line Items]    
Restricted Cash $ 3,200 $ 3,200