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v2.4.1.9

Supplemental Consolidating Financial Statements - Cash Flows (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 24, 2015 | Jan. 25, 2014 | Jul. 26, 2014
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | $ 83,255 us-gaap_NetCashProvidedByUsedInOperatingActivities | $ 67,866 us-gaap_NetCashProvidedByUsedInOperatingActivities |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | (9,821)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |
Capital expenditures | (38,772)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (49,240)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Proceeds from sale of assets | 4,039 us-gaap_ProceedsFromSaleOfProductiveAssets | 4,964 us-gaap_ProceedsFromSaleOfProductiveAssets |
Return of capital from subsidiaries | 0 dy_CapitalContributionToSubsidiaries | 0 dy_CapitalContributionToSubsidiaries |
Investment in subsidiaries | 0 dy_InvestmentInSubsidiaries | 0 dy_InvestmentInSubsidiaries |
Changes in restricted cash | (541)us-gaap_IncreaseDecreaseInRestrictedCash | (305)us-gaap_IncreaseDecreaseInRestrictedCash |
Net cash used in investing activities | (45,095)us-gaap_NetCashProvidedByUsedInInvestingActivities | (44,581)us-gaap_NetCashProvidedByUsedInInvestingActivities |
FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings on senior Credit Agreement | 175,000 us-gaap_ProceedsFromLongTermLinesOfCredit | 221,000 us-gaap_ProceedsFromLongTermLinesOfCredit |
Principal payments on senior Credit Agreement, including Term Loan | (198,688)us-gaap_RepaymentsOfLongTermLinesOfCredit | (247,125)us-gaap_RepaymentsOfLongTermLinesOfCredit |
Repurchases of common stock | (17,147)us-gaap_PaymentsForRepurchaseOfCommonStock | (9,999)us-gaap_PaymentsForRepurchaseOfCommonStock | (10,000)us-gaap_PaymentsForRepurchaseOfCommonStock
Exercise of stock options | 2,335 us-gaap_ProceedsFromStockOptionsExercised | 11,869 us-gaap_ProceedsFromStockOptionsExercised |
Restricted stock tax withholdings | (4,330)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (3,590)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation |
Excess tax benefit from share-based awards | 2,426 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities | 2,297 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |
Intercompany funding | 0 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities | 0 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities |
Net cash used in financing activities | (40,404)us-gaap_NetCashProvidedByUsedInFinancingActivities | (25,548)us-gaap_NetCashProvidedByUsedInFinancingActivities |
Net decrease in cash and equivalents | (2,244)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (2,263)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 20,672 us-gaap_CashAndCashEquivalentsAtCarryingValue | 18,607 us-gaap_CashAndCashEquivalentsAtCarryingValue | 18,607 us-gaap_CashAndCashEquivalentsAtCarryingValue
CASH AND EQUIVALENTS AT END OF PERIOD | 18,428 us-gaap_CashAndCashEquivalentsAtCarryingValue | 16,344 us-gaap_CashAndCashEquivalentsAtCarryingValue | 20,672 us-gaap_CashAndCashEquivalentsAtCarryingValue
Parent |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | (8,331)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (4,085)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Capital expenditures | (4,144)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (3,351)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Proceeds from sale of assets | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Return of capital from subsidiaries | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Investment in subsidiaries | 0 dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Changes in restricted cash | (541)us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (305)us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net cash used in investing activities | (4,685)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (3,656)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings on senior Credit Agreement | 175,000 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 221,000 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Principal payments on senior Credit Agreement, including Term Loan | (198,688)us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (247,125)us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Repurchases of common stock | (17,147)us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (9,999)us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Exercise of stock options | 2,335 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 11,869 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Restricted stock tax withholdings | (4,330)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (3,590)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Excess tax benefit from share-based awards | 2,426 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,297 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Intercompany funding | 53,420 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 33,289 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net cash used in financing activities | 13,016 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 7,741 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net decrease in cash and equivalents | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
CASH AND EQUIVALENTS AT END OF PERIOD | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Issuer |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | (6,115)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = dy_IssuerMember | (6,135)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = dy_IssuerMember |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = dy_IssuerMember |  |
Capital expenditures | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = dy_IssuerMember |
Proceeds from sale of assets | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = dy_IssuerMember |
Return of capital from subsidiaries | 1,749 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = dy_IssuerMember | 683 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = dy_IssuerMember |
Investment in subsidiaries | (21,668)dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = dy_IssuerMember | (800)dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = dy_IssuerMember |
Changes in restricted cash | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = dy_IssuerMember |
Net cash used in investing activities | (19,919)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = dy_IssuerMember | (117)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = dy_IssuerMember |
FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings on senior Credit Agreement | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = dy_IssuerMember |
Principal payments on senior Credit Agreement, including Term Loan | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = dy_IssuerMember |
Repurchases of common stock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = dy_IssuerMember |
Exercise of stock options | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = dy_IssuerMember |
Restricted stock tax withholdings | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = dy_IssuerMember |
Excess tax benefit from share-based awards | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember |
Intercompany funding | 26,034 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember | 6,252 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember |
Net cash used in financing activities | 26,034 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember | 6,252 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = dy_IssuerMember |
Net decrease in cash and equivalents | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = dy_IssuerMember |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = dy_IssuerMember
CASH AND EQUIVALENTS AT END OF PERIOD | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = dy_IssuerMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = dy_IssuerMember |
Subsidiary Guarantors |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | 96,931 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 79,911 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | (9,821)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |
Capital expenditures | (31,281)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (43,150)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Proceeds from sale of assets | 4,031 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 3,361 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Return of capital from subsidiaries | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Investment in subsidiaries | (300)dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Changes in restricted cash | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Net cash used in investing activities | (37,371)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (39,789)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings on senior Credit Agreement | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Principal payments on senior Credit Agreement, including Term Loan | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Repurchases of common stock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Exercise of stock options | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Restricted stock tax withholdings | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Excess tax benefit from share-based awards | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Intercompany funding | (62,219)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (43,076)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Net cash used in financing activities | (62,219)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (43,076)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Net decrease in cash and equivalents | (2,659)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (2,954)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 19,739 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 18,166 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 18,166 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
CASH AND EQUIVALENTS AT END OF PERIOD | 17,080 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 15,212 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Non- Guarantor Subsidiaries |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | 770 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,825)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Capital expenditures | (3,347)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (2,739)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Proceeds from sale of assets | 8 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,603 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Return of capital from subsidiaries | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Investment in subsidiaries | 0 dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 dy_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Changes in restricted cash | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net cash used in investing activities | (3,339)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,136)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings on senior Credit Agreement | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Principal payments on senior Credit Agreement, including Term Loan | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Repurchases of common stock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Exercise of stock options | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Restricted stock tax withholdings | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Excess tax benefit from share-based awards | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Intercompany funding | 2,984 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 3,652 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net cash used in financing activities | 2,984 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 3,652 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net decrease in cash and equivalents | 415 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 691 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 933 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 441 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 441 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
CASH AND EQUIVALENTS AT END OF PERIOD | 1,348 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,132 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Eliminations and Reclassifications |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by (used in) operating activities | 0 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
INVESTING ACTIVITIES: |  |  |
Cash paid for acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Capital expenditures | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Proceeds from sale of assets | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ProceedsFromSaleOfProductiveAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Return of capital from subsidiaries | (1,749)dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (683)dy_CapitalContributionToSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
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Changes in restricted cash | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncreaseDecreaseInRestrictedCash / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
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FINANCING ACTIVITIES: |  |  |
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Exercise of stock options | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ProceedsFromStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Restricted stock tax withholdings | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Excess tax benefit from share-based awards | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Intercompany funding | (20,219)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (117)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Net cash used in financing activities | (20,219)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (117)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Net decrease in cash and equivalents | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
CASH AND EQUIVALENTS AT END OF PERIOD | $ 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907 + Details
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