XML 59 R47.htm IDEA: XBRL DOCUMENT v3.22.4
Restricted Securities Available For Sale (Restricted Securities Available For Sale) (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost $ 76.1 $ 62.0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0.0 0.5
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 3.8 0.4
Debt Securities, Available-for-sale, Restricted [1] 72.3 62.1
Corporate bonds [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 32.6 27.3
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0.0 0.3
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 1.7 0.2
Debt Securities, Available-for-sale, Restricted 30.9 27.4
US Government and agency securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 29.5 21.5
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0.0 0.2
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 1.7 0.1
Debt Securities, Available-for-sale, Restricted 27.8 21.6
Asset-backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 13.8 12.9
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0.0 0.0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 0.4 0.1
Debt Securities, Available-for-sale, Restricted 13.4 12.8
Mortgage-backed securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Amortized Cost 0.2 0.3
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0.0 0.0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 0.0 0.0
Debt Securities, Available-for-sale, Restricted $ 0.2 $ 0.3
[1] Measured at fair value on a recurring basis.