Debt Obligations - Additional Information (Details) - USD ($)					1 Months Ended		3 Months Ended						7 Months Ended	12 Months Ended
	Jun. 09, 2025	Feb. 09, 2025	Dec. 02, 2021	Feb. 08, 2021	Jan. 31, 2026	Nov. 30, 2025	Dec. 31, 2028	Sep. 30, 2028	Jun. 30, 2028	Mar. 31, 2028	Dec. 31, 2027	Sep. 30, 2027	Sep. 09, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 01, 2020	Aug. 09, 2019
Debt Instrument [Line Items]
Secured term loan																	$ 325,000,000	$ 450,000,000
One-month SOFR			4.50%
Deferred financing cost						$ 5,250,000
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]														Secured Overnight Financing Rate (SOFR)	Secured Overnight Financing Rate (SOFR)
Loss on extinguishment of debt						800,000								$ 1,394,000	$ 4,135,000	$ (2,217,000)
Repayment of debt						150,000,000
Principal payments				$ 25,000,000									$ 5,000,000
Senior mortgage amount	$ 235,000,000			$ 300,000,000
Gain on extinguishment of debt						(800,000)								(1,394,000)	(4,135,000)	2,217,000
Contractual Maturity Date	Jun. 09, 2027			Feb. 09, 2025
Interest expense														304,990,000	440,344,000	470,512,000
General and administrative expenses						2,700,000								$ 19,987,000	$ 15,707,000	$ 16,605,000
Debt issuance costs						$ 5,250,000
Debt instrument, variable interest rate basis														0	0
One month LIBOR/ SOFR rate														3.69%	4.33%
Current expected credit loss reserve														$ (365,400,000)
Investment, Type [Extensible Enumeration]				Real Estate Investment [Member]
Minimum
Debt Instrument [Line Items]
Strike rate				3.00%
Maximum
Debt Instrument [Line Items]
Strike rate				5.00%
Forbearance Agreement
Debt Instrument [Line Items]
Contractual Maturity Date		Sep. 09, 2025
Secured Term Loan
Debt Instrument [Line Items]
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]														Secured Overnight Financing Rate (SOFR)		Secured Overnight Financing Rate (SOFR)
Contractual Maturity Date														Aug. 09, 2026	Aug. 09, 2026
One month LIBOR/ SOFR rate														3.69%		4.33%
Secured Term Loan \| Minimum
Debt Instrument [Line Items]
One-month SOFR			0.10%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			Secured Overnight Financing Rate (SOFR)
Tangible networth as of measurement date														$ 1,400,000,000
Secured Term Loan \| Maximum
Debt Instrument [Line Items]
One-month SOFR			0.50%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			Secured Overnight Financing Rate (SOFR)
Percentage of total assets as indebtedness														77.80%
Secured Term Loan \| Subsequent Event
Debt Instrument [Line Items]
Secured term loan					$ 500,000,000
One-month SOFR					6.75%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					Secured Overnight Financing Rate (SOFR)
Debt instrument floor rate					2.50%
Contractual Maturity Date					Jan. 30, 2030
Repurchase Agreements and Term Participation Facility
Debt Instrument [Line Items]
Percentage of aggregate cash proceeds from equity issuances, capital contributions and subscriptions, net														75.00%
Repurchase Agreements and Term Participation Facility \| Minimum
Debt Instrument [Line Items]
Tangible networth as of measurement date														$ 1,000,000,000
Cash liquidity amount to be maintained														$ 20,000,000
Percentage of recourse indebtedness														5.00%
Repurchase Agreements and Term Participation Facility \| Minimum \| Scenario Forecast
Debt Instrument [Line Items]
Ratio of earnings before interest, taxes, depreciation and amortization to interest charges							1.30%	1.30%	1.20%	1.20%	1.10%	1.10%
Repurchase Agreements and Term Participation Facility \| Maximum
Debt Instrument [Line Items]
Percentage of total assets as indebtedness														77.80%
New Secured Term Loan
Debt Instrument [Line Items]
Percentage of aggregate cash proceeds from equity issuances, capital contributions and subscriptions, net														75.00%
New Secured Term Loan \| Minimum
Debt Instrument [Line Items]
Tangible networth as of measurement date														$ 1,000,000,000
New Secured Term Loan \| Minimum \| Scenario Forecast
Debt Instrument [Line Items]
Ratio of earnings before interest, taxes, depreciation and amortization to interest charges							1.30%	1.30%	1.20%	1.20%	1.10%	1.10%
New Secured Term Loan \| Maximum
Debt Instrument [Line Items]
Percentage of total assets as indebtedness														77.80%

Claros Mortgage Trust, Inc. 10-K