XML 55 R109.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Long-Term Borrowings (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Residential mortgage, commercial real estate, and multi-family loans $ 577.9 $ 552.6
Additional borrowing limit 460.0  
Long-term investments $ 2.3 $ 2.3
Interest rate 3.59%  
Debt interest rate payment description The debt has a floating rate that is determined quarterly based on the three-month LIBOR  
Debenture maturity date Dec. 15, 2036  
Trust Preferred Debenture    
Debt Instrument [Line Items]    
Long-term investments $ 2.1