XML 73 R57.htm IDEA: XBRL DOCUMENT
v3.21.2

REVENUE - TIMING OF REVENUE RECOGNITION - BALANCE SHEET (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Customer accounts receivable |  |
Billed | $ 205,482 | $ 134,173
Unbilled revenues | 12,663 | 9,226
Customers' credit balances and deposits | (22,699) | $ (25,934)
Customers accounts receivables & Customers' credit balances and deposits | 195,446 |
Operating Segments | Natural Gas Distribution |  |
Customer accounts receivable |  |
Billed | 76,254 |
Unbilled revenues | 9,072 |
Customers' credit balances and deposits | (22,699) |
Customers accounts receivables & Customers' credit balances and deposits | 62,627 |
Operating Segments | Clean Energy Ventures |  |
Customer accounts receivable |  |
Billed | 5,524 |
Unbilled revenues | 3,591 |
Customers' credit balances and deposits | 0 |
Customers accounts receivables & Customers' credit balances and deposits | 9,115 |
Operating Segments | Energy Services |  |
Customer accounts receivable |  |
Billed | 118,234 |
Unbilled revenues | 0 |
Customers' credit balances and deposits | 0 |
Customers accounts receivables & Customers' credit balances and deposits | 118,234 |
Operating Segments | Storage and Transportation |  |
Customer accounts receivable |  |
Billed | 3,662 |
Unbilled revenues | 0 |
Customers' credit balances and deposits | 0 |
Customers accounts receivables & Customers' credit balances and deposits | 3,662 |
Home Services and Other |  |
Customer accounts receivable |  |
Billed | 1,808 |
Unbilled revenues | 0 |
Customers' credit balances and deposits | 0 |
Customers accounts receivables & Customers' credit balances and deposits | $ 1,808 |

X
- Definition Contract with Customer, Assets (Liabilities), Net + References No definition available. + Details
Name: | njr_ContractwithCustomerAssetsLiabilitiesNet
Namespace Prefix: | njr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4531-111522 + Details
Name: | us-gaap_AccountsReceivableGrossCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountsReceivableNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044 + Details
Name: | us-gaap_ContractWithCustomerLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. + References No definition available. + Details
Name: | us-gaap_UnbilledReceivablesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=njr_NaturalGasDistributionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=njr_CleanEnergyVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=njr_EnergyServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=njr_StorageAndTransportationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |