Debt Covenant, Total Debt to Total Capitalization Ratio, Maximum

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- Definition

Letter Of Credit Sublimit

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Line of Credit Facility, Additional Borrowing Capacity

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- Definition

Long Term Debt Maturities Repayments Of Principal, Total

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- Definition

Make Whole Premium

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- Definition

Total Debt to Total Capitalization Ratio

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- Definition

Total Maturities Before Unamortized Adjustments

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- Definition

Unamortized Deferred Financing Costs

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- Definition

Unamortized Deferred Financing Costs, Consolidated

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- Definition

Unamortized Deferred Financing Costs (Subsidiary)

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Gross amount of debt extinguished.

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No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of long-term debt and capital lease obligations including current maturities.

+ References

No definition available.

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Debt (Long-term Debt Maturities) (Details) $ in Millions	12 Months Ended
Debt (Long-term Debt Maturities) (Details) $ in Millions	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 07, 2019 USD ($)	Apr. 30, 2018 USD ($)	Mar. 30, 2018 USD ($)
Debt Instrument [Line Items]
Total Debt to Total Capitalization Ratio	0.57
Long-term Line of Credit	$ 104.0	$ 0.0
Line of Credit Facility, Maximum Borrowing Capacity	125.0
Proceeds from Issuance of Long-term Debt	$ 821.7	0.0	$ 0.0
Debt Covenant, Total Debt to Total Capitalization Ratio, Maximum	0.65
Unamortized Deferred Financing Costs, Consolidated	$ (11.3)
Current portion - long-term debt	140.2
Long-term Debt, Maturities, Repayments of Principal in Year Two	380.2
2018	0.2
2019	0.2
2020	0.2
Thereafter	857.1
Total Maturities	1,378.1
Total long-term debt	1,363.1
Unamortized Deferred Financing Costs	(5.9)	(4.3)
Current portion - long-term debt	139.8	103.6
Long-term Debt, Excluding Current Maturities	1,223.3	1,372.3
Letter Of Credit Sublimit	75.0
Line of Credit Facility, Additional Borrowing Capacity	50.0
THE DAYTON POWER AND LIGHT COMPANY [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	40.0	0.0
Line of Credit Facility, Maximum Borrowing Capacity	175.0
Unamortized Deferred Financing Costs (Subsidiary)	(5.4)	(6.3)
Letter Of Credit Sublimit	75.0
Line of Credit Facility, Additional Borrowing Capacity	100.0
3.95% Senior Notes due 2049 [Member] \| THE DAYTON POWER AND LIGHT COMPANY [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	$ 425.0
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Extinguishment of Debt, Amount	$ 435.0
Long-term Debt, Gross	425.0
Ten Year Senior Unsecured Bonds At 435 Maturing At April 15 2029 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	$ 400.0
Debt Instrument, Interest Rate, Stated Percentage	4.35%
Senior Unsecured Bonds at 7.25% maturing in 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.25%
Extinguishment of Debt, Amount	$ 400.0
Make Whole Premium	41.4
Long-term Debt, Gross	$ 380.0	$ 780.0		$ 780.0
Revolving Credit Agreement and Standby Letters of Credit [Member] \| THE DAYTON POWER AND LIGHT COMPANY [Member]
Debt Instrument [Line Items]
Debt Covenant, Total Debt to Total Capitalization Ratio, Maximum	0.67
Senior Unsecured Notes At 6.80 Maturing On October 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.75%	6.75%
Extinguishment of Debt, Amount	$ 99.0	$ 101.0
Make Whole Premium	1.5				$ 5.1
Long-term Debt, Gross						$ 200.0
Term Loan Maturing 2022 (DPL) [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	0.0	436.1
One Point One Three To One Point One Seven Bonds Maturing In August Two Thousand Twenty [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 140.0
Four Point Two Zero Percentage Of U S Government Note Maturing In February Two Thousand Sixty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Long-term Debt, Gross	$ 17.5	17.7
Variable Rate Notes Backed by Term Loan and First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount		60.0
Debt [Member]
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations, Including Current Maturities	$ 1,363.1	$ 1,475.9