The Company’s consolidated balance sheet includes Level I fair value measurements related to cash equivalents, restricted cash, accounts receivable, and accrued liabilities. As of March 31, 2022 and December 31, 2021, the Company had $286.9 million and $199.3 million, respectively, invested in money market funds with original maturities of less than 90 days. The carrying values of these financial assets and liabilities are reasonable estimates of fair value because of the short-term maturities of these instruments. The consolidated balance sheet also includes loans held for investment, the assets and liabilities of its CLOs, and secured credit agreements that are considered Level III fair value measurements that are not measured at fair value on a recurring basis but are subject to fair value adjustments utilizing the fair value of the underlying collateral when there is evidence of impairment and when the loan is dependent solely on the collateral for payment of principal and interest.

The following tables provide information about the fair value of the Company’s financial assets and liabilities on the Company’s consolidated balance sheets as of March 31, 2022 and December 31, 2021 (dollars in thousands):


	March 31, 2022
			Fair value
	Carrying value		Level I		Level II		Level III
Financial assets
Loans held for investment	$	5,069,481	$	—	$	—	$	5,091,160
Financial liabilities
Collateralized loan obligations		2,810,626		—		—		2,828,618
Secured credit agreements		1,162,576		—		—		1,165,000
Secured revolving credit facility		30,380		—		—		30,380


	December 31, 2021
			Fair value
	Carrying value		Level I		Level II		Level III
Financial assets
Loans held for investment	$	4,867,203	$	—	$	—	$	4,899,666
Financial liabilities
Collateralized loan obligations		2,545,691		—		—		2,558,544
Secured credit agreements		1,162,206		—		—		1,169,710

As of March 31, 2022 and December 31, 2021, the estimated fair value of the Company’s loans held for investment portfolio was $5.1 billion and $4.9 billion, respectively, which approximated carrying value. The weighted average gross credit spread for the Company’s loans held for investment portfolio as of March 31, 2022 and December 31, 2021 was 3.44% and 3.39%, respectively. The weighted average years to maturity as of March 31, 2022 and December 31, 2021 was 2.7 years and 2.8 years, respectively, assuming full extension of all loans held for investment.

As of March 31, 2022 and December 31, 2021, the estimated fair value of the collateralized loan obligation liabilities and secured credit agreements approximated fair value as current borrowing spreads and duration reflect market terms.

Level III fair values are determined based on standardized valuation models and significant unobservable market inputs, including holding period, discount rates based on LTV, property type and loan pricing expectations developed by the Company’s Manager that were corroborated with other institutional lenders to determine market spreads that are added to the forward curve of the underlying benchmark interest rate. There were no transfers of financial assets or liabilities within the levels of the fair value hierarchy during the three months ended March 31, 2022.