Federal Home Loan Bank Advances and Other Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Long-term Federal Home Loan Bank Advances [Abstract]

Summary of activities in advances from the FHLB

The following table summarizes activities in advances from the FHLB for the periods indicated:

	Year Ended December 31,
	2017			2016
	(dollars in thousands)
Average balance outstanding	$	290,839		$	58,814
Maximum amount outstanding at any month-end during the year	490,148			278,000
Balance outstanding at end of year	490,148			278,000
Weighted average interest rate during the year	1.19		%	0.59		%

Summary of activities in other borrowings

The following table summarizes activities in other borrowings for the periods indicated:

	Year Ended December 31,
	2017			2016
	(dollars in thousands)
Average balance outstanding	$	50,866		$	48,732
Maximum amount outstanding at any month-end during the year	52,996			53,586
Balance outstanding at end of year	46,139			49,971
Weighted average interest rate during the year	1.86		%	1.94		%