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Fair Value Measurements
3 Months Ended
Mar. 31, 2024
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The fair value hierarchy established by ASC 820, Fair Value Measurement, prioritizes the use of inputs used in valuation techniques into the following three levels:
Level 1 inputs are observable quoted prices in active markets for identical assets or liabilities
Level 2 inputs are observable, either directly or indirectly, but are not Level 1 inputs
Level 3 inputs are unobservable
The following fair value hierarchy table presents the Company’s assets that are measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023:
As of March 31, 2024As of December 31, 2023
Fair Value HierarchyFair Value Hierarchy
(in thousands)Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Cash and cash equivalents(a)
$358,304 $— $— $358,304 $380,564 $— $— $380,564 
Restricted cash(a)
14,749 — — 14,749 14,116 — — 14,116 
Restricted investments(b)
— 130,499 — 130,499 — 130,287 — 130,287 
Investments in lieu of retention(c)
28,342 87,614 — 115,956 19,988 86,961 — 106,949 
Total$401,395 $218,113 $— $619,508 $414,668 $217,248 $— $631,916 
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(a)Includes money market funds and short-term investments with maturity dates of three months or less when acquired.
(b)Restricted investments, as of March 31, 2024 and December 31, 2023, consist of available-for-sale (“AFS”) debt securities, which are valued based on pricing models determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets.
(c)Investments in lieu of retention are included in retention receivable as of March 31, 2024 and December 31, 2023, and are composed of money market funds of $28.3 million and $20.0 million, respectively, and AFS debt securities of $87.6 million and $87.0 million, respectively. The fair values of the money market funds are measured using quoted market prices; therefore, they are classified as Level 1 assets. The fair values of AFS debt securities are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets.
Investments in AFS debt securities consisted of the following as of March 31, 2024 and December 31, 2023:
As of March 31, 2024As of December 31, 2023
(in thousands)Amortized CostUnrealized GainsUnrealized LossesFair ValueAmortized CostUnrealized GainsUnrealized LossesFair Value
Restricted investments:
Corporate debt securities$101,568 $395 $(2,257)$99,706 $95,903 $762 $(2,202)$94,463 
U.S. government agency securities24,380 (1,050)23,334 29,082 18 (1,054)28,046 
Municipal bonds7,899 (908)6,995 8,227 (914)7,318 
Corporate certificates of deposit495 — (31)464 498 — (38)460 
Total restricted investments134,342 403 (4,246)130,499 133,710 785 (4,208)130,287 
Investments in lieu of retention:
Corporate debt securities88,134 105 (1,682)86,557 87,601 246 (1,950)85,897 
Municipal bonds824 233 — 1,057 823 241 — 1,064 
Total investments in lieu of retention88,958 338 (1,682)87,614 88,424 487 (1,950)86,961 
Total AFS debt securities$223,300 $741 $(5,928)$218,113 $222,134 $1,272 $(6,158)$217,248 
The following table summarizes the fair value and gross unrealized losses aggregated by category and the length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2024 and December 31, 2023:
As of March 31, 2024
Less than 12 Months12 Months or GreaterTotal
(in thousands)Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Restricted investments:
Corporate debt securities$22,242 $(123)$37,507 $(2,134)$59,749 $(2,257)
U.S. government agency securities3,333 (24)14,869 (1,026)18,202 (1,050)
Municipal bonds— — 6,814 (908)6,814 (908)
Corporate certificates of deposit— — 465 (31)465 (31)
Total restricted investments25,575 (147)59,655 (4,099)85,230 (4,246)
Investments in lieu of retention:
Corporate debt securities24,714 (125)45,925 (1,557)70,639 (1,682)
Total investments in lieu of retention24,714 (125)45,925 (1,557)70,639 (1,682)
Total AFS debt securities$50,289 $(272)$105,580 $(5,656)$155,869 $(5,928)
As of December 31, 2023
Less than 12 Months12 Months or GreaterTotal
(in thousands)Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Restricted investments:
Corporate debt securities$4,971 $(3)$40,649 $(2,199)$45,620 $(2,202)
U.S. government agency securities1,280 (4)22,858 (1,050)24,138 (1,054)
Municipal bonds99 (2)7,038 (912)7,137 (914)
Corporate certificates of deposit— — 460 (38)460 (38)
Total restricted investments6,350 (9)71,005 (4,199)77,355 (4,208)
Investments in lieu of retention:
Corporate debt securities11,398 (55)49,726 (1,895)61,124 (1,950)
Total investments in lieu of retention11,398 (55)49,726 (1,895)61,124 (1,950)
Total AFS debt securities$17,748 $(64)$120,731 $(6,094)$138,479 $(6,158)
The unrealized losses in AFS debt securities as of March 31, 2024 and December 31, 2023 are primarily attributable to market interest rate increases and not a deterioration in credit quality of the issuers. Management evaluated the unrealized losses in AFS debt securities considering factors including credit ratings and other relevant information, which may indicate that contractual cash flows are not expected to occur. Based on the analysis, management determined that credit losses did not exist for AFS debt securities in an unrealized loss position as of March 31, 2024 and December 31, 2023.
It is not considered likely that the Company will be required to sell the investments before full recovery of the amortized cost basis of the AFS debt securities, which may be at maturity. As a result, consistent with the same period in 2023, the Company has not recognized any impairment losses in earnings during the three months ended March 31, 2024.
The amortized cost and fair value of AFS debt securities by contractual maturity as of March 31, 2024 are summarized in the table below. Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay certain obligations.
(in thousands)Amortized CostFair Value
Due within one year$38,792 $38,009 
Due after one year through five years174,478 171,095 
Due after five years10,030 9,009 
Total$223,300 $218,113 
The carrying values of receivables, payables and other amounts arising out of normal contract activities, including retention, which may be settled beyond one year, are estimated to approximate fair value. Of the Company’s long-term debt, the fair value of the 2017 Senior Notes was $495.4 million and $490.9 million as of March 31, 2024 and December 31, 2023, respectively. The fair values of the 2017 Senior Notes were determined using Level 1 inputs, specifically current observable market prices. The fair value of the Term Loan B was $274.4 million and $358.9 million as of March 31, 2024 and December 31, 2023, respectively. The fair values of the Term Loan B were determined using Level 2 inputs, specifically third-party quoted market prices. The reported value of the Company’s remaining borrowings approximates fair value as of March 31, 2024 and December 31, 2023.