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

No definition available.

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

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- 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

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

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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Balance Type:	debit
Period Type:	instant

- 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

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=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

The amortization percentage after first eight payments over principal amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	xela_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amortization percentage on first eight payments over principal amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	xela_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Lowest interest rate, or floor, that may be charged.

+ References

No definition available.

+ Details

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Namespace Prefix:	xela_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum amount of liquidity needed to be maintained by the entity.

+ References

No definition available.

+ Details

Name:	xela_MinimumLiquidityAmount
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=xela_FirstLienCreditAgreement2017Member
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- Details

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Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
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Long-Term Debt and Credit Facilities - Senior Credit Facilities (Details) - USD ($) $ in Millions	May 18, 2020	Jul. 12, 2017	Dec. 31, 2019	Dec. 31, 2018
Debt instruments
Original issue discount		$ 7.0
Minimum liquidity amount	$ 35.0
First lien credit agreement
Debt instruments
Original issue discount			$ 6.5	$ 8.3
Senior secured term loan \| First lien credit agreement
Debt instruments
Amount of facility		350.0
Original issue discount		$ 7.0
Principal percentage of each of first eight payments (as a percent)		0.60%
Principal percentage of each payment thereafter (as a percent)		1.30%
Revolver \| First lien credit agreement
Debt instruments
Maximum borrowing capacity		$ 100.0
Letters of credit outstanding			$ 20.6	$ 20.6
LIBOR \| Senior secured term loan \| First lien credit agreement
Debt instruments
Applicable margin rate		7.50%
Floor interest rate		1.00%
LIBOR \| Revolver \| First lien credit agreement
Debt instruments
Applicable margin rate		7.00%
Base rate \| Senior secured term loan \| First lien credit agreement
Debt instruments
Applicable margin rate		6.50%
Base rate \| Revolver \| First lien credit agreement
Debt instruments
Applicable margin rate		6.00%