Long Term Debt - Summary of Future Amortization of Debt Issuance Costs and Original Issue Discount (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($)
Long-Term Debt, Unclassified [Abstract]
2023	$ 4,986
2024	5,466
2025	1,429
2026	148
Thereafter
Total	$ 12,029

Future amortization of debt issuance costs and original issue discount.

No definition available.

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Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Future amortization of debt issuance costs and original issue discount after year five.

No definition available.

Name:	kld_FutureAmortizationOfDebtIssuanceCostsAndOriginalIssueDiscountAfterYearFive
Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Future amortization of debt issuance costs and original issue discount in next twelve months.

No definition available.

Name:	kld_FutureAmortizationOfDebtIssuanceCostsAndOriginalIssueDiscountInNextTwelveMonths
Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Future amortization of debt issuance costs and original issue discount in year four.

No definition available.

Name:	kld_FutureAmortizationOfDebtIssuanceCostsAndOriginalIssueDiscountInYearFour
Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Future amortization of debt issuance costs and original issue discount in year three.

No definition available.

Name:	kld_FutureAmortizationOfDebtIssuanceCostsAndOriginalIssueDiscountInYearThree
Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Future amortization of debt issuance costs and original issue discount in year two.

No definition available.

Name:	kld_FutureAmortizationOfDebtIssuanceCostsAndOriginalIssueDiscountInYearTwo
Namespace Prefix:	kld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

No definition available.

Name:	us-gaap_LongTermDebtAbstract
Namespace Prefix:	us-gaap_
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Period Type:	duration