Leases Schedule of Lease Expense (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Lease, Cost [Table Text Block]

For the three and six months ended June 30, 2019, the Company had the following:

	Three Months Ended		Six Months Ended
(Dollars in thousands)	June 30, 2019		June 30, 2019
Operating lease expense	$	1,547	$	3,092
Variable lease expense	473		878
Short-term lease expense	459		877
Total lease expense	$	2,479	$	4,847
			As of June 30, 2019
Weighted-average remaining lease term			4.2 years
Weighted-average discount rate			5.0		%