Allowance for Loan Losses - Modified Loan Accounts for TDR (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Receivables [Abstract]
Modified Loans	$ 515,398	$ 394,639	$ 498,812
Charge-offs	74,137	52,823	48,469
Payment-Default	$ 111,810	$ 90,231	$ 92,532