XML 148 R135.htm IDEA: XBRL DOCUMENT
v3.23.1

Long-term Borrowings - Summary of Detailed Information About Loans Outstanding (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Three-month Euribor (360) plus a 2.2% spread long-term debt with final payment due August 2022 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Three-month Euribor (360) | Three-month Euribor (360)
Long-term debt interest rate spread | 2.20% | 2.20%
Long-term debt maturity | August 2022 | August 2022
Six-months Euribor (360) plus a 2.75% spread long-term debt with final payment due December 2022 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Six-month Euribor (360) | Six-month Euribor (360)
Long-term debt interest rate spread | 2.75% | 2.75%
Long-term debt maturity | December 2022 | December 2022
Three-month Euribor (360) plus a 1.9% spread long-term debt with final payment due June 2023 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Three-month Euribor (360) | Three-month Euribor (360)
Long-term debt interest rate spread | 1.90% | 1.90%
Long-term debt maturity | June 2023 | June 2023
Six-month Euribor (360) plus a 2.5% spread long-term debt with final payment due August 2023 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Six-month Euribor (360) | Six-month Euribor (360)
Long-term debt interest rate | 2.50% | 2.50%
Long-term debt maturity | August 2023 | August 2023
11.76% Fixed long-term debt with final payment due October 2023 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate | 11.76% | 11.76%
Long-term debt maturity | October 2023 | October 2023
Six-month Euribor (360) plus a 2.75% spread long-term debt with final payment due March 2025 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Six-month Euribor (360) | Six-month Euribor (360)
Long-term debt interest rate | 2.75% | 2.75%
Long-term debt maturity | March 2025 | March 2025
2.3% fixed long-term debt with final payment due January 2026 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate | 2.30% | 2.30%
Long-term debt maturity | January 2026 | January 2026
No interest rate long-term debt with final payment due September 2027 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate | 0.00% | 0.00%
Long-term debt maturity | September 2027 | September 2027
0.21% fixed long-term debt with final payment due December 2030 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate | 0.21% | 0.21%
Long-term debt maturity | December 2030 | December 2030
80% of six-months Euribor (360) plus a 0.95% spread long-term debt with final payment due January 2035 [member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Six-month Euribor (360) | Six-month Euribor (360)
Long-term debt interest rate | 80.00% | 80.00%
Long-term debt interest rate spread | 0.95% | 0.95%
Long-term debt maturity | January 2035 | January 2035
Three-month Euribor (360) plus 2.00% spread long-term debt with final payment due December 2027 [Member] |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate basis | Three-month Euribor (360) | Three-month Euribor (360)
Long-term debt interest rate spread | 2.00% | 2.00%
Long-term debt maturity | December 2027 | December 2027
0.055 Fixed Long-Term Debt With Final Payment Due December 2025 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Long-term debt interest rate | 0.055% | 0.055%
Long-term debt maturity | December 2025 | December 2025

X
- Definition The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRateBasis
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsMaturity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ThreeMonthsEuriborThreeSixtyPlusTwoPointTwoPercentageSpreadLongTermDebtWithFinalPaymentDueAugustTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_SixMonthsEuriborThreeSixtyPlusTwoPointSevenFivePercentageSpreadLongTermDebtWithFinalPaymentDueDecemberTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ThreeMonthsEuriborThreeSixtyPlusOnePointNinePercentageSpreadLongTermDebtWithFinalPaymentDueJuneTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_SixMonthsEuriborThreeSixtyPlusTwoPointFivePercentageSpreadLongTermDebtWithFinalPaymentDueAugustTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ElevenPointSevenSixPercentageFixedLongTermDebtWithFinalPaymentDueOctoberTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_SixMonthsEuriborThreeSixtyPlusTwoPointSevenFivePercentageSpreadLongTermDebtWithFinalPaymentDueMarchTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_TwoPointThreePercentageFixedLongTermDebtWithFinalPaymentDueJanuaryTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_NoInterestRateLongTermDebtWithFinalPaymentDueSeptemberTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ZeroPointTwoOnePercentageFixedLongTermDebtWithFinalPaymentDueDecemberTwoThousandThirtyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_EightyPercentageOfSixMonthsEuriborThreeSixtyPlusZeroPointNineFivePercentageSpreadLongTermDebtWithFinalPaymentDueJanuaryTwoThousandThirtyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ThreeMonthEuriborThreeSixtyPlusTwoPointZeroPercentageSpreadLongTermDebtWithFinalPaymentDueDecemberTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ntz_ZeroPointZeroFiveFiveFixedLongTermDebtWithFinalPaymentDueDecemberTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |