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Income Taxes - Schedule of Changes in Deferred Tax Asset Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 152,235	$ 157,595	$ 111,779
Charged (credited) to expenses	9,996	(5,051)	46,397
Charged (credited) to other accounts	22	(309)	(581)
Balance at end of period	$ 162,253	$ 152,235	$ 157,595

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

Deferred tax assets valuation allowance charged (credited) to expense

+ References

No definition available.

+ Details

Name:	xper_DeferredTaxAssetsValuationAllowanceChargedCreditedToExpense
Namespace Prefix:	xper_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Deferred tax assets valuation allowance charged (credited) to other accounts.

+ References

No definition available.

+ Details

Name:	xper_DeferredTaxAssetsValuationAllowanceChargedCreditedToOtherAccounts
Namespace Prefix:	xper_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration