XML 37 R71.htm IDEA: XBRL DOCUMENT
v2.4.0.8

EMPLOYEE RETIREMENT SAVINGS PLAN (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
EMPLOYEE RETIREMENT SAVINGS PLAN |  |  |
Employee contribution limit per calendar year to 401 (k) plan | 50.00% |  |
Company contributions | $ 11,600 | $ 10,000 | $ 8,700
Assets related to non-qualified deferred compensation plan included in other assets | 27,133 | 20,087 |
Liabilities related to non-qualified deferred compensation plan included in other noncurrent liabilities | 27,133 | 20,087 |
Total amount distributed from non-qualified deferred compensation plan | $ 1,626 | $ 250 |

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of distributions made to the individual during the period. + References No definition available. + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualDistributionsPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
Name: | us-gaap_DeferredCompensationPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of liabilities for fully funded, non-qualified deferred compensation plan payable beyond one year (or the operating cycle, if longer). + References No definition available. + Details
Name: | vmi_DeferredCompensationLiabilitiesNoncurrent
Namespace Prefix: | vmi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The limit of annual employee contributions to the plan per calendar year as a percentage of compensation. + References No definition available. + Details
Name: | vmi_DefinedContributionPlanEmployeeContributionLimitPercentageOfCompensation
Namespace Prefix: | vmi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration