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Fair Value Measurements
3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following tables present the Company’s fair value hierarchy for financial assets and liabilities measured as of March 31, 2022 and December 31, 2021 ($ in millions):

March 31, 2022
Level 1Level 2Level 3Total
Assets:
Corporate debt securities$— $594.4 $— $594.4 
U.S. Government obligations— 99.1 — 99.1 
Municipal securities— 1.2 — 1.2 
Fixed maturities— $694.7 — $694.7 
Short term investments— 83.2 — 83.2 
Total$— $777.9 $— $777.9 
December 31, 2021
Level 1Level 2Level 3Total
Assets:
Corporate debt securities$— $588.7 $— $588.7 
U.S. Government obligations— 101.5 — 101.5 
Municipal securities— 1.2 — 1.2 
Fixed maturities — 691.4 — 691.4 
Short term investments— 110.4 — 110.4 
Total$— $801.8 $— $801.8 
The fair value of all our different classes of Level 2 fixed maturities and short-term investments are estimated by using quoted prices from a third-party valuation service provider to gather, analyze and interpret market information and derive fair values based upon relevant methodologies and assumptions for individual instruments.
There were no transfers between Level 1, Level 2, or Level 3 during March 31, 2022 and December 31, 2021, respectively.