XML 23 R12.htm IDEA: XBRL DOCUMENT
v3.23.2

Statements Of Consolidated Equity (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Common Stock, Dividends, Per Share, Declared |  | $ 0.25 |  | $ 0.24 |  | $ 0.75 | $ 0.71
Preferred Stock Redemption Premium |  | $ (6.2) |  | $ 0.0 |  | $ (6.2) | $ 0.0
Preferred stock |  | (8.2) |  | (8.2) |  | (35.7) | (35.7)
Distributions to noncontrolling interests |  | (4.7) |  | (2.5) |  | (10.0) |
Noncontrolling Interest |  |  |  |  |  |  |
Preferred stock |  | 0.0 |  | 0.0 |  | 0.0 | 0.0
Distributions to noncontrolling interests |  | 4.7 |  | 2.5 |  | 10.0 | 3.1
Common Stock |  |  |  |  |  |  |
Preferred stock |  | 0.0 |  | 0.0 |  | 0.0 | 0.0
Distributions to noncontrolling interests |  | 0.0 |  | 0.0 |  |  |
Preferred Stock |  |  |  |  |  |  |
Preferred Stock, Redemption Amount |  | (393.9) |  |  |  | (393.9) |
Preferred stock |  | 0.0 | [1] | 0.0 | [1] | 0.0 | 0.0
Distributions to noncontrolling interests | [1] | 0.0 |  | 0.0 |  |  |
Treasury Stock, Common |  |  |  |  |  |  |
Preferred stock |  | 0.0 |  | 0.0 |  | 0.0 | 0.0
Distributions to noncontrolling interests |  | 0.0 |  | 0.0 |  |  |
Additional Paid-in Capital |  |  |  |  |  |  |
Preferred stock |  | 0.0 |  | 0.0 |  | 0.0 | 0.0
Distributions to noncontrolling interests |  | 0.0 |  | 0.0 |  |  |
Retained Deficit |  |  |  |  |  |  |
Preferred Stock Redemption Premium |  |  |  |  |  | (6.2) |
Preferred stock |  | (8.2) |  | (8.2) |  | (35.7) | (35.7)
Distributions to noncontrolling interests |  | 0.0 |  | 0.0 |  |  |
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |  |  |
Preferred stock |  | 0.0 |  | 0.0 |  | $ 0.0 | $ 0.0
Distributions to noncontrolling interests |  | $ 0.0 |  | $ 0.0 |  |  |
[1] | (1) See Note 5, "Equity," for additional information.

X
- Definition Preferred stock redemption + References No definition available. + Details
Name: | nix_PreferredStockRedemption
Namespace Prefix: | nix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 2 -SubTopic 405 -Topic 942 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481071/942-405-45-2 + Details
Name: | us-gaap_DividendsPreferredStockCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480408/260-10-S99-2 + Details
Name: | us-gaap_PreferredStockRedemptionPremium
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockCommonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |