Long-term Debt, term loan

No definition available.

Name:	psd_LongtermDebttermloan
Namespace Prefix:	psd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13)(2))
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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-Publisher FASB
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-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the noncurrent portion 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_LongTermLineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Long-Term Debt (Narrative) (Details) - USD ($)	Dec. 31, 2019	Aug. 02, 2019	Dec. 31, 2018	Oct. 01, 2018	Jun. 04, 2018	Mar. 28, 2018	Mar. 19, 2018	Mar. 05, 2018
Debt Instrument [Line Items]
Long-term Debt, term loan				$ 210,000,000.0
Total PSE long-term debt	$ 6,584,372,000
Long-term Line of Credit, Noncurrent	24,100,000		$ 11,900,000
Long-term debt	6,584,372,000
Line of Credit Facility, Remaining Borrowing Capacity		$ 550,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity	1,300,000,000
$174M Term Loan Due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, term loan	174,000,000		150,000,000	150,000,000.0
Term Loan Expansion [Member]
Debt Instrument [Line Items]
Long-term Line of Credit, Noncurrent			100,000,000.0
Term Loan Expansion [Member] \| $174M Term Loan Due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, term loan				$ 24,000,000.0
Subsidiaries [Member]
Debt Instrument [Line Items]
Total PSE long-term debt	4,376,272,000
Long-term debt	4,376,272,000
Commercial Paper					$ 348,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity	1,400,000,000	$ 1,000,000,000.0
Subsidiaries [Member] \| Senior Secured Note \| 6.740% Series Due 2018
Debt Instrument [Line Items]
Total PSE long-term debt					200,000,000.0
Long-term debt					200,000,000.0
Subsidiaries [Member] \| Senior Secured Note \| 4.223% Series Due 2048
Debt Instrument [Line Items]
Total PSE long-term debt	600,000,000		600,000,000		600,000,000.0
Long-term debt	$ 600,000,000		$ 600,000,000		$ 600,000,000.0
Stated interest rate percent	4.223%				4.223%
Subsidiaries [Member] \| Junior Subordinated Debt \| consent fees [Member]
Debt Instrument [Line Items]
Total PSE long-term debt								$ 2,600,000
Long-term debt								2,600,000
Subsidiaries [Member] \| Junior Subordinated Debt \| debt premium
Debt Instrument [Line Items]
Total PSE long-term debt								1,005
Long-term debt								1,005
Subsidiaries [Member] \| Junior Subordinated Debt \| debt discount
Debt Instrument [Line Items]
Total PSE long-term debt								975
Long-term debt								975
Subsidiaries [Member] \| Junior Subordinated Debt \| principal paid
Debt Instrument [Line Items]
Total PSE long-term debt								194,900,000
Long-term debt								194,900,000
Subsidiaries [Member] \| Junior Subordinated Debt \| debt face value
Debt Instrument [Line Items]
Total PSE long-term debt								1,000
Long-term debt								1,000
Subsidiaries [Member] \| Junior Subordinated Debt \| early principal paid
Debt Instrument [Line Items]
Total PSE long-term debt								193,400,000
Long-term debt								193,400,000
Subsidiaries [Member] \| Junior Subordinated Debt \| remaining principal paid
Debt Instrument [Line Items]
Total PSE long-term debt						$ 56,600,000
Long-term debt						$ 56,600,000
Subsidiaries [Member] \| Junior Subordinated Debt \| 6.974% Series Due 2067
Debt Instrument [Line Items]
Total PSE long-term debt								250,000,000.0
Long-term debt								$ 250,000,000.0
Stated interest rate percent						6.974%	6.974%	6.974%