XML 213 R71.htm IDEA: XBRL DOCUMENT
v3.20.2

Long-Term Debt - Outstanding Long-Term Debt (Detail) - USD ($) | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (536,500,000) |  | $ (486,600,000)
Debt Instrument, Unused Borrowing Capacity, Amount |  | 310,000,000 |  |
Total Long-term debt |  | 535,571,000 |  | 485,768,000
Less: current maturities |  | (15,600,000) |  | (45,600,000)
Less: debt issuance costs |  | 922,000 |  | 822,000
Total long-term debt, net of current maturities |  | 519,971,000 |  | 440,168,000
NYL Unsecured Debt [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (40,000,000.0) |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.96% |  |
Aggregated Unfunded Commitments [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ 0 |  |
Prudential Unfunded Commitments [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (50,000,000.0) |  |
Debt Instrument, Interest Rate, Stated Percentage | [1],[2] | 3.00% |  |
New York Life [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (140,000,000) |  |
9.08% bond, due June 1, 2022 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (7,993,000) | [3] | (7,990,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 9.08% |  |
5.50% note, due October 12, 2020 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (2,000,000) |  | (2,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 5.50% |  |
5.93% note, due October 31, 2023 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (10,500,000) |  | (12,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 5.93% |  |
5.68% note, due June 30, 2026 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (17,400,000) |  | (20,300,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 5.68% |  |
6.43% note, due May 2, 2028 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (5,600,000) |  | (6,300,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 6.43% |  |
3.73% note, due December 16, 2028 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (18,000,000) |  | (18,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 3.73% |  |
3.88% note, due May 15, 2029 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (45,000,000) |  | (50,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 3.88% |  |
3.25% note, due April 30, 2032 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (70,000,000) |  | (70,000,000)
3.48% note, due May 31, 2038 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | (50,000,000) |  | (50,000,000)
Uncollateralized Senior Note Due November Two Thousand Thirty Eight [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (50,000,000) |  | (50,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 3.58% |  |
Uncollateralized Senior Note Due August Two Thousand Thirty Nine [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (100,000,000) |  | (100,000,000)
Debt Instrument, Interest Rate, Stated Percentage |  | 3.98% |  |
Term Note Due January Two Thousand Twenty [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (70,000,000) |  | (70,000,000)
Term Note Due February Two Thousand Twenty [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | 0 |  | $ (30,000,000)
Uncollateralized Senior Note Due July Two Thousand Thirty Five |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (50,000,000) |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.00% |  |
Uncollateralized Senior Note Due August Two Thousand Thirty Five |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (40,000,000) |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.96% |  |
Aggregate Shelf Agreements [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | $ (360,000,000) |  |
Aggregate Shelf Agreements [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  | 670,000,000 |  |
Prudential [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total long-term debt |  | (220,000,000) |  |
Debt Instrument, Unused Borrowing Capacity, Amount | [1],[2] | 150,000,000 |  |
Prudential [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount | [1],[2] | 370,000,000 |  |
MetLife [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount | [4] | 150,000,000.0 |  |
Debt Instrument, Unused Borrowing Capacity, Amount | [4] | $ 150,000,000 |  |
[1] | 2) In April 2020, the Prudential Shelf Agreement was amended to increase the available borrowing capacity to $150.0 million. The Shelf Agreement expires in April 2023.
[2] | (1) In January 2020, we requested and Prudential accepted our request to purchase $50.0 million of our unsecured debt. We issued the Shelf Notes in July 2020 at the rate of 3.00 percent per annum.
[3] | FPU secured first mortgage bonds are guaranteed by Chesapeake Utilities.
[4] | (3) In May 2020, we reached into an agreement with MetLife to provide a new $150.0 million MetLife Shelf Agreement for a three-year term ending May 2023.

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt 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 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + 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 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: 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(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, classified as noncurrent. + 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 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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. + 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 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + 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 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_NYLUnsecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_AggregatedUnfundedCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_PrudentialUnfundedCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_NewYorkLifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_FirstMortgageBondDueOnTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueOnTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueOnTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueOnTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueOnMay2TwoThousandTwentyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteTwoDueonDecemberTwoThousandTwentyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNotesDueOnTwoThousandTwentyNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueAprilTwoThousandThirtyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNotesDueMay31TwoThousandThirtyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueNovemberTwoThousandThirtyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueAugustTwoThousandThirtyNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_TermNoteDueJanuaryTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_TermNoteDueFebruaryTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueJulyTwoThousandThirtyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cpk_UncollateralizedSeniorNoteDueAugustTwoThousandThirtyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=cpk_AggregateShelfAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=cpk_PrudentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=cpk_MetLifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |