Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Facilities (Details)

v3.19.3
Revolving Credit Facilities (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Line of Credit Facility [Line Items]    
Revolving credit facilities $ 300,000 $ 310,000
Weighted average borrowing rate 4.52% 5.60%
Weighted average remaining maturity 1 year 5 months 12 days 4 years 3 months
Mortgage servicing rights, at fair value, pledged as collateral for borrowings $ 1,600,000 $ 1,100,000
Line of Credit [Member]    
Line of Credit Facility [Line Items]    
Mortgage servicing rights, at fair value, pledged as collateral for borrowings $ 460,200 $ 458,200