XML 54 R10.htm IDEA: XBRL DOCUMENT v3.22.2
Marketable Securities and Fair Value Measurements
6 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
Marketable Securities and Fair Value Measurements Marketable Securities and Fair Value Measurements
The Company’s marketable securities consist of corporate bonds and government securities which are adjusted to fair value at each balance sheet date based on quoted prices, which are considered Level 2 inputs.
The following is a summary of the Company’s available-for-sale marketable securities measured at fair value on a recurring basis.
June 30, 2022
(dollars in millions)
Valuation
Hierarchy
Effective
Maturity
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Corporate bondsLevel 2
2022 - 2023
$824.5 $— $(8.0)$816.5 
Corporate bondsLevel 2
2023 - 2025
363.3 — (13.0)350.3 
Government securitiesLevel 2
2022 - 2023
79.9 — (0.8)79.1 
Government securitiesLevel 2
2023 - 2024
4.3 — (0.2)4.1 
Total$1,272.0 $— $(22.0)$1,250.0 
 December 31, 2021
(dollars in millions)
Valuation
Hierarchy
Effective
Maturity
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Corporate bondsLevel 2
2022
$784.0 $— $(0.7)$783.3 
Corporate bondsLevel 2
2023 - 2024
582.5 — (3.8)578.7 
Government securitiesLevel 2
2022
32.4 — (0.1)32.3 
Total $1,398.9 $— $(4.6)$1,394.3 
The carrying values of accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the short-term nature of these assets and liabilities.