XML 190 R176.htm IDEA: XBRL DOCUMENT
v3.25.1

Derivative Financial Instruments - Summary of Euro Equivalent the Contractual Amounts of forward Exchange Contracts (Detail) - EUR (€) € in Thousands | Dec. 31, 2024 | Mar. 31, 2024 | Jan. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount |  | € 2,500 | € 3,000 |
Forward exchange contract [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | € 12,728 |  |  | € 19,036
Forward exchange contract [member] | U.S. dollars [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | 5,515 |  |  | 2,816
Forward exchange contract [member] | British pounds [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | 4,304 |  |  | 3,443
Forward exchange contract [member] | Euro [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | 2,416 |  |  | 12,056
Forward exchange contract [member] | Australian dollars [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | 369 |  |  | € 721
Forward exchange contract [member] | Japanese yen [member] |  |  |  |
Disclosure Of Derivative Financial Instruments [line items] |  |  |  |
Notional amount | € 124 |  |  |

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Disclosure Of Derivative Financial Instruments [line items] + References No definition available. + Details
Name: | ntz_DisclosureOfDerivativeFinancialInstrumentsLineItems
Namespace Prefix: | ntz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_ForwardContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_GBP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_EUR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_AUD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_JPY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |