Debt instrument convertible conversion ratio denominator.

No definition available.

Name:	adpt_DebtInstrumentConvertibleConversionRatioDenominator
Namespace Prefix:	adpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of premium of initial conversion price.

+ References

No definition available.

+ Details

Name:	adpt_PercentageOfPremiumOfInitialConversionPrice
Namespace Prefix:	adpt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Name:	us-gaap_ConversionOfStockSharesConverted1
Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ 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

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

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Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- 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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Convertible Senior Notes and Capped Call Transactions - Additional Information (Details) $ in Thousands			3 Months Ended	6 Months Ended
	Jun. 22, 2026 USD ($) $ / shares shares	Jun. 16, 2026 $ / shares	Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)
0% Convertible Senior Notes Due 2031
Debt Instrument [Line Items]
Aggregate principal amount	$ 345,000		$ 345,000	$ 345,000
Debt instrument, interest rate, stated percentage	0.00%
Debt issuance costs	$ 10,200
Maturity date	Jul. 01, 2031
Debt instrument fair value amount			403,400	403,400
Interest expense			$ 43	$ 43
0% Convertible Senior Notes Due 2031 \| Minimum
Debt Instrument [Line Items]
Conversion price threshold	130.00%
Percentage of aggregate principal amount	25.00%
0% Convertible Senior Notes Due 2031 \| Common Stock
Debt Instrument [Line Items]
Initial conversion rate	0.004148
Initial conversion price \| $ / shares	$ 24.11
Principal amount of each convertible note	$ 1
0% Convertible Senior Notes Due 2031 \| Common Stock \| Maximum
Debt Instrument [Line Items]
Conversion of stock shares \| shares	20,034,840
Capped Call Transactions \| Common Stock
Debt Instrument [Line Items]
Initial cap price \| $ / shares		34.44
Percentage of premium of initial conversion price		100.00%
Sale price per share \| $ / shares		$ 17.22