Total Long-term Debt At Subsidary With Purchase Accounting Adjustments

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Maximum contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Minimum contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

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-Section 45

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Debt Obligations (Long-term Debt) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended			3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Sep. 19, 2013	Mar. 01, 2011	Oct. 03, 2011
Long-term debt, gross		$ 2,139.6us-gaap_DebtInstrumentCarryingAmount	$ 2,284.2us-gaap_DebtInstrumentCarryingAmount		$ 2,139.6us-gaap_DebtInstrumentCarryingAmount
Total long-term debt at subsidary	874.7	874.7	874.6
Obligation for capital lease		(2.8)us-gaap_CapitalLeaseObligations	(3.1)us-gaap_CapitalLeaseObligations		(2.8)us-gaap_CapitalLeaseObligations
Unamortized debt discount	(0.7)	(0.7)	(1.0)		(0.7)
Total long-term debt	2,129.6us-gaap_LongTermDebt	2,139.6us-gaap_LongTermDebt			2,139.6us-gaap_LongTermDebt
THE DAYTON POWER AND LIGHT COMPANY [Member]
Unamortized debt discount	(2.8)	(2.8)			(2.8)
First Mortgage Bonds Maturing in September 2016 - 1.875%
Long-term debt, gross	445.0	445.0	445.0		445.0	445.0
Debt instrument maturity year	Sep. 01, 2016	Sep. 01, 2016
Debt instrument interest percentage	1.875%	1.875%			1.875%
Pollution Control Series Maturing in January 2028 - 4.70% [Member]
Long-term debt, gross	35.3	35.3	35.3		35.3
Debt instrument maturity year	Jan. 01, 2028	Jan. 01, 2028
Debt instrument interest percentage	4.70%	4.70%			4.70%
Pollution Control Series Maturing in January 2034 - 4.80% [Member]
Long-term debt, gross	179.1	179.1	179.1		179.1
Debt instrument maturity year	Jan. 01, 2034	Jan. 01, 2034
Debt instrument interest percentage	4.80%	4.80%			4.80%
Pollution Control Series Maturing in September 2036 - 4.80% [Member]
Long-term debt, gross	100.0	100.0	100.0		100.0
Debt instrument maturity year	Sep. 01, 2036	Sep. 01, 2036
Debt instrument interest percentage	4.80%	4.80%			4.80%
Pollution control series maturing in November 2040 - variable rates: 0.04% - 0.26% and 0.06% - 0.32% [Member]
Long-term debt, gross	100.0	100.0	100.0		100.0
Debt instrument maturity year	Nov. 01, 2040	Nov. 01, 2040
Debt instrument interest percentage	0.02%
Debt instrument interest percentage minimum		0.04%	0.04%
Debt instrument interest percentage maximum	0.05%	0.15%		0.26%
U.S. Government note maturing in February 2061 - 4.20% [Member]
Long-term debt, gross	18.1	18.1	18.3		18.1		18.7
Debt instrument maturity year	Feb. 01, 2061	Feb. 01, 2061
Debt instrument interest percentage	4.20%	4.20%			4.20%		4.20%
Five Year Senior Unsecured Notes At 6.75 Maturing October 15 2019 [Member]
Long-term debt, gross		200.0			200.0
Debt instrument maturity year		Oct. 01, 2019
Debt instrument interest percentage		6.75%			6.75%
Bank Term Loan maturing in May 2018 [Member]
Long-term debt, gross	130.0	140.0	180.0		140.0
Debt instrument maturity year	May 01, 2018	May 01, 2018
Debt instrument interest percentage		2.41%			2.41%
Debt instrument interest percentage minimum	2.41%	2.41%	2.42%		2.42%
Debt instrument interest percentage maximum	2.43%	2.42%	2.45%		2.45%
Note to DPL Capital Trust II Maturing in September 2031 - 8.125% [Member]
Long-term debt, gross	15.6	15.6	20.6		15.6
Debt instrument maturity year	Sep. 01, 2031	Sep. 01, 2031
Debt instrument interest percentage	8.125%	8.125%			8.125%
Senior Unsecured Notes at 6.50% maturing on October 15, 2016 [Member]
Long-term debt, gross	130.0	130.0	430.0		130.0
Debt instrument maturity year	Oct. 01, 2016	Oct. 01, 2016
Debt instrument interest percentage	6.50%	6.50%	6.50%		6.50%			6.50%
Senior Unsecured Notes at 6.80% maturing on October 2019 [Member]
Long-term debt, gross	200.0	200.0			200.0
Debt instrument maturity year	Oct. 01, 2019
Debt instrument interest percentage	6.75%
Ten Year Senior Unsecured Notes at 7.25% maturing at October 15, 2021 [Member]
Long-term debt, gross	$ 780.0	$ 780.0	$ 780.0		$ 780.0
Debt instrument maturity year	Oct. 01, 2021	Oct. 01, 2021
Debt instrument interest percentage	7.25%	7.25%	7.25%		7.25%			7.25%