Line of Credit, Fixed Charges Ratio

No definition available.

Name:	drq_LineOfCreditFixedChargesRatio
Namespace Prefix:	drq_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
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- Details

Name:	us-gaap_VariableRateAxis=drq_CBFloatingRateMember
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- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
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Asset Backed Loan (ABL) Credit Facility (Details)		9 Months Ended
Asset Backed Loan (ABL) Credit Facility (Details)	Feb. 23, 2018 USD ($)	Sep. 30, 2021 USD ($)
Debt Instrument [Line Items]
Available borrowing capacity		$ 31,100,000
Letters of credit outstanding		$ 7,200,000
ABL Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term	5 years
Total commitments	$ 100,000,000.0
Amount available for letters of credit (up to)	$ 10,000,000.0
Fixed charges ratio		1.1
ABL Credit Facility \| Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Commitment fee percentage	0.25%
ABL Credit Facility \| Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Commitment fee percentage	0.375%
ABL Credit Facility \| Revolving Credit Facility \| CB Floating Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
ABL Credit Facility \| Revolving Credit Facility \| CB Floating Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
ABL Credit Facility \| Revolving Credit Facility \| Eurodollar \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
ABL Credit Facility \| Revolving Credit Facility \| Eurodollar \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%