Basis of Presentation and Summary of Significant Accounting Policies - Performance Obligations (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($)
Basis of Presentation and Summary of Significant Accounting Policies
Contracts with an original expected length	true
2024	$ 35,578
2025	30,109
2026	3,676
2027	2,071
2028	1,251
Total	$ 72,685

No definition available.

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

- Definition

Indicates (true false) whether optional exemption was applied not to disclose amount of transaction price allocated to and explanation of expected timing of revenue recognition for remaining performance obligation, when contract has expected duration of one year or less or right to consideration corresponds directly to performance completed.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

+ Details

Name:	us-gaap_RevenuePracticalExpedientRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

+ Details

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

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue, due in the twelve months following the latest fiscal year.

+ References

No definition available.

+ Details

Name:	xela_RevenueRemainingPerformanceObligationAmountDueInNextTwelveMonths
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue, due in fifth fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

Name:	xela_RevenueRemainingPerformanceObligationAmountDueYearFive
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue, due in fourth fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

Name:	xela_RevenueRemainingPerformanceObligationAmountDueYearFour
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue, due in third fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

Name:	xela_RevenueRemainingPerformanceObligationAmountDueYearThree
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue, due in second fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

Name:	xela_RevenueRemainingPerformanceObligationAmountDueYearTwo
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant