Line Of Credit Facility, Fronting Fee Percentage

No definition available.

Name:	dt_LineOfCreditFacilityFrontingFeePercentage
Namespace Prefix:	dt_
Data Type:	dtr-types:percentItemType
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

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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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Balance Type:	debit
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

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+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

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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

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types: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.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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
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+ 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

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+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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Long-term Debt (Details) - USD ($)		3 Months Ended
Long-term Debt (Details) - USD ($)	Dec. 02, 2022	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025
Line of Credit Facility [Line Items]
Interest expense, including amortization of debt issuance costs and original issuance discount		$ 200,000	$ 100,000
Credit Agreement \| Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 400,000,000.0
Long-term line of credit		0		$ 0
Available borrowing capacity		399,000,000.0		399,200,000
Basis spread on variable interest rate	0.10%
Fronting fee percentage	0.125%
Debt issuance costs, gross	$ 1,900,000
Debt issuance costs		900,000		1,000,000
Credit Agreement \| Line of Credit \| Revolving Credit Facility \| Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage	0.175%
Credit Agreement \| Line of Credit \| Revolving Credit Facility \| Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage	0.35%
Credit Agreement \| Line of Credit \| Bridge Loan
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 30,000,000.0
Credit Agreement \| Line of Credit \| Letter of Credit
Line of Credit Facility [Line Items]
Debt instrument, face amount	45,000,000.0
Letters of credit issued		$ 1,000,000.0		$ 800,000
Credit Agreement \| Line of Credit \| Foreign Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 100,000,000.0