Federal Home Loan Bank and Federal Reserve Bank Borrowings (Tables) - Federal Home Loan Bank Advances [Member]

12 Months Ended

Dec. 31, 2018

Debt Instrument [Line Items]

Schedule of Maturities of Long-term Debt

At December 31, 2018, FHLB advances were scheduled to mature as follows:

	Federal Home Loan Bank Advances Fixed rate advances
	Weighted Average Rate		Amount
	(dollars in thousands)
Within 1 year	2.64	%	$	392,000
Over 1 through 5 years	3.85	%	2,000
Due after 10 years	5.37	%	5,000
Total			399,000
Valuation adjustment from acquisition accounting			523
Total			$	399,523

Debt Instrument Activity For Year

The maximum, average outstanding and year-end balances and average interest rates on advances from the FHLB were as follows for the years ended December 31, 2018, 2017 and 2016:

	Years ended December 31,
	2018			2017			2016
	(dollars in thousands)
Balance at end of period	$	399,523		$	11,579		$	6,493
Average balance during period	$	166,563		$	79,788		$	79,673
Maximum month-end balance during period	$	399,523		$	317,480		$	250,515
Weighted average rate during period	2.29		%	1.33		%	0.80		%
Weighted average rate at December 31	2.68		%	4.08		%	5.42		%

Schedule of Financial Instruments Owned and Pledged as Collateral