Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]

The following table summarizes the above financial instruments at the dates indicated:

	March 31, 2019		December 31, 2018
	(Dollars in thousands)
Commitments to extend credit	$	2,648,940	$	2,639,689
Standby letters of credit	17,580		16,708
Deferred standby letter of credit fees	128		122