DEFINED BENEFIT PLANS - Narrative (Details)	9 Months Ended
Jul. 30, 2017 USD ($)
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future benefit payments, next rolling twelve months	$ 600,000
Defined benefit plan, minimum annual contribution, percent	0.00%
Defined contribution plan, maximum annual contributions per employee, percent	25.00%
The Steelworkers Pension Trust \| CENTRIA Benefit Plan \| Multiemployer Plans, Pension
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plans, minimum contribution	$ 300,000.0

Defined Benefit Plan, Maximum Annual Employee Contribution, Percent

No definition available.

Name:	ncs_DefinedBenefitPlanMaximumAnnualEmployeeContributionPercent
Namespace Prefix:	ncs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Minimum Annual Employee Contribution, Percent

+ References

No definition available.

+ Details

Name:	ncs_DefinedBenefitPlanMinimumAnnualContributionPercent
Namespace Prefix:	ncs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of minimum contribution(s) required for future periods to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (f)(3)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

+ Details

Name:	us-gaap_MultiemployerPlansMinimumContribution
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MultiemployerPlanNameAxis=ncs_TheSteelworkersPensionTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ncs_CentriaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MultiemployerPlanTypeAxis=us-gaap_MultiemployerPlansPensionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: