Fixed Charge Coverage Ratio

No definition available.

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Namespace Prefix:	clw_
Data Type:	xbrli:decimalItemType
Balance Type:	na
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- Definition

Potential additional lines of credit

+ References

No definition available.

+ Details

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Namespace Prefix:	clw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
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Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

+ Details

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

- Definition

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

+ References

+ Details

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

- Definition

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

+ References

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Balance Type:	na
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.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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+ Details

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

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

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-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

+ Details

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

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility first became available, in YYYY-MM-DD format.

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Balance Type:	na
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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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Balance Type:	na
Period Type:	duration

- 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

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Balance Type:	credit
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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Balance Type:	credit
Period Type:	instant

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

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

- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

+ References

+ Details

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

- Definition

Amount of long-term debt and lease obligation, classified as current.

+ References

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

- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

+ References

No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

+ References

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

Indebtedness divided by net capital.

+ References

No definition available.

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- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt - Additional Information (Details)			3 Months Ended								12 Months Ended
Debt - Additional Information (Details)	Nov. 01, 2024 USD ($)	May 01, 2024 Rate	Dec. 31, 2024 USD ($) Rate	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) Rate	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 18, 2020 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 284,100,000				$ 445,000,000.0				$ 284,100,000	$ 445,000,000.0
Unamortized Debt Issuance Expense			1,800,000				5,100,000				1,800,000	5,100,000
Finance Lease, Liability			9,100,000				0				9,100,000	0
Long-term debt			281,600,000				439,900,000				281,600,000	439,900,000
Long-Term Debt and Lease Obligation, Including Current Maturities			282,200,000				439,900,000				282,200,000	439,900,000
Borrowings on long-term debt											753,400,000	222,000,000.0	$ 0
Debt retirement costs			(9,100,000)	$ 0	$ 0	$ 0	(3,100,000)	$ 0	$ 0	$ 0	(9,100,000)	(3,100,000)	(500,000)
Write off of Deferred Debt Issuance Cost												400,000
Long-term Debt, Fair Value			258,900,000				425,700,000				258,900,000	425,700,000
Long-term Debt and Lease Obligation, Current			600,000				0				600,000	0
Long-term debt			283,400,000				445,000,000.0				283,400,000	445,000,000.0
Line of Credit Facility, Remaining Borrowing Capacity			221,300,000								221,300,000
Interest rate spread \| Rate		3.65%
Credit facility, maximum borrowing capacity			$ 270,000,000								$ 270,000,000
Debt covenant, actual fixed charge ratio			0.020								0.020
Repayments of Debt											$ 931,100,000	325,600,000	$ 80,900,000
Line of Credit Facility, Initiation Date		May 01, 2024
J.P. Morgan [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 375,000,000				275,000,000				375,000,000	275,000,000
Potential additional lines of credit			$ 100,000,000								$ 100,000,000
J.P. Morgan [Member] \| Minimum
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital			1.10								1.10
Interest rate spread											0.25%
J.P. Morgan [Member] \| Maximum
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital			1.00								1.00
Interest rate spread											0.375%
J.P. Morgan [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Minimum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate \| Rate			125.00%								125.00%
J.P. Morgan [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Maximum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate \| Rate			175.00%								175.00%
J.P. Morgan [Member] \| Base Rate [Member] \| Minimum
Debt Instrument [Line Items]
Interest rate spread \| Rate											0.25%
AgWest Farm Credit
Debt Instrument [Line Items]
Potential additional lines of credit			$ 60,000,000								$ 60,000,000
Repayments of Debt	$ 490,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate \| Rate			0.00%								0.00%
Long-term Line of Credit			$ 0				20,000,000.0				$ 0	20,000,000.0
Revolving Credit Facility [Member] \| J.P. Morgan [Member]
Debt Instrument [Line Items]
Long-term Debt, Fair Value			0				20,000,000.0				0	20,000,000.0
Outstanding stand by letters of credit			3,700,000								3,700,000
Term Loan [Member] \| AgWest Farm Credit
Debt Instrument [Line Items]
Long-term Debt, Gross			0				150,000,000.0				0	150,000,000.0
Unamortized Debt Issuance Expense			0				2,800,000				0	2,800,000
Long-term Debt			0				147,200,000				0	147,200,000
Long-term Debt, Fair Value			$ 0				150,600,000				$ 0	150,600,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate \| Rate			0.00%								0.00%
Senior Note Due 2028 \| Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term Debt, Fair Value			$ 258,900,000				255,100,000				$ 258,900,000	255,100,000
Senior Note Due 2028
Debt Instrument [Line Items]
Long-term Debt, Gross			275,000,000.0				275,000,000.0				275,000,000.0	275,000,000.0
Unamortized Debt Issuance Expense			1,800,000				2,400,000				1,800,000	2,400,000
Long-term Debt			$ 273,200,000				$ 272,600,000				$ 273,200,000	$ 272,600,000
Debt instrument, principal amount														$ 275,000,000
Debt instrument, interest rate														4.75%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate \| Rate			4.75%								4.75%
Long-term Debt
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 275,000,000								$ 275,000,000
CLW_TwentyTwentNotesMember \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, maturity date											Aug. 15, 2028
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date											Nov. 07, 2027