Transfers of Financial Assets (Tables)

3 Months Ended

Mar. 31, 2019

Transfers of Financial Assets

Schedule of carrying amounts of assets pledged as collateral

(dollars in thousands)	March 31, 2019		December 31, 2018
Public deposits	$	1,759,692	$	1,749,726
Federal Home Loan Bank		2,589,411		2,497,030
Federal Reserve Bank		937,390		957,017
ACH transactions		152,579		150,903
Interest rate swaps		30,665		28,843
Total	$	5,469,737	$	5,383,519