Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Short-term Debt [Abstract]

Schedule of Short-term Debt

Short-term borrowings at December 31 are as follows:

(Dollars in thousands)	2017		2016
Repurchase agreements	$	586,171	$	590,772
Notes payable to Federal Home Loan Banks	90,000		10,000
Federal funds purchased	2,551		2,551
Subordinated notes payable	15,000		—
Unamortized purchase accounting adjustments	85		164
Total short-term borrowings	$	693,807	$	603,487