XML 76 R66.htm IDEA: XBRL DOCUMENT
v3.19.1

Employees' leaving entitlement (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Text block [abstract] |
Summary of Changes to Employees' Leaving Entitlement | Changes to employees’ leaving entitlement occurring during 2018 and 2017 are analysed as follows:
Balance as at January 1, 2017 |  |  | 19,426 |
Current service cost |  |  | 119 |
Interest expense |  |  | 247 |
Benefits paid |  |  | (1,080 | )
Actuarial losses |  |  | 108 |
Balance as at December 31, 2017 |  |  | 18,820 |
Current service cost |  |  | 148 |
Interest expense |  |  | 235 |
Benefits paid |  |  | (1,449 | )
Actuarial gains |  |  | (573 | )
Balance as at December 31, 2018 |  |  | 17,181 |
Summary of Assumptions Used in Determining Present Value of Defined Benefit Obligation Related to Employee Benefit Obligation | The principal assumptions used in determining the present value of such defined benefit obligation (“DBO”) related to the employee benefit obligation are reported as follows:
|  | 31/12/18 |  |  | 31/12/17 |  |  | 01/01/17 |
Annual discount rate |  |  | 1.57% |  |  |  | 1.30% |  |  |  | 1.31% |
Annual future salary increase rate |  |  | 0.00% |  |  |  | 0.00% |  |  |  | 0.00% |
Annual inflation rate |  |  | 1.50% |  |  |  | 1.50% |  |  |  | 1.50% |
Annual DBO increase rate |  |  | 2.625% |  |  |  | 2.625% |  |  |  | 2.625% |
Mortality |  |  | RG48 mortality tables published by the General State Accounting |
Inability |  |  | National Institute for Social Security tables, by age and sex |
Retirement |  |  | 100% upon achievement of AGO requisites |
Annual frequency of turnover |  |  | 4.00% |  |  |  | 4.00% |  |  |  | 4.00% |
Annual frequency of DBO advances |  |  | 2.00% |  |  |  | 2.00% |  |  |  | 2.00% |
Summary of Quantitative Sensitivity Analysis for Significant Assumptions | A quantitative sensitivity analysis for significant assumptions impacting the DBO as at December 31, 2018 and 2017 is reported as follows:
|  | 31/12/18 |  |  | 31/12/17 |
+1% on turnover rate |  |  | (68 | ) |  |  | (118 | )
-1% on turnover rate |  |  | 75 |  |  |  | 132 |
+0.25% on annual inflation rate |  |  | 259 |  |  |  | 298 |
-0.25% on annual inflation rate |  |  | (256 | ) |  |  | (292 | )
+0.25% on annual discount rate |  |  | (402 | ) |  |  | (461 | )
-0.25% on annual discount rate |  |  | 417 |  |  |  | 479 |
Schedule of Expected Payments or Contributions to Defined Benefit Plan | The following are the expected payments or contributions to the defined benefit plan in future years:
|  | 31/12/18 |  |  | 31/12/17 |
Within 1 year |  |  | 1,065 |  |  |  | 1,199 |
Between 2 and 5 years |  |  | 4,181 |  |  |  | 4,441 |

X
- Definition The disclosure of an analysis of the present value of a defined benefit obligation that distinguishes the nature, characteristics and risks of the obligation. Such a disclosure could distinguish: (a) between amounts owing to active members, deferred members, and pensioners; (b) between vested benefits and accrued but not vested benefits; and (c) between conditional benefits, amounts attributable to future salary increases and other benefits. [Refer: Defined benefit obligation, at present value] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 137 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_137&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of a net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_140_a&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of a sensitivity analysis for significant actuarial assumptions used to determine the present value of a defined benefit obligation. [Refer: Actuarial assumptions [member]; Defined benefit obligation, at present value] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 145 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_145&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of expected contributions of defined benefit obligations. + References No definition available. + Details
Name: | ntz_DisclosureOfExpectedContributionsOfDefinedBenefitObligationsExplanatory
Namespace Prefix: | ntz_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | ntz_TextBlockAbstract
Namespace Prefix: | ntz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration