Lease Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Classification on the Balance Sheet
Operating lease assets	$ 27,081		$ 27,082
Finance lease assets, net	2,638		2,973
Total lease assets	29,719		30,055
Operating Leases	2,391		2,282
Finance Lease	1,206		1,222
Operating	30,125		30,772
Finance	1,271		1,546
Total lease liabilities	34,993		$ 35,822
Lease cost
Operating lease cost	1,509	$ 1,031
Amortization	357	290
Interest	89	82
Short-term lease cost		138
Variable lease cost	542	486
Sublease income	(293)	(224)
Total lease cost	2,204	1,803
Operating cash flows used for operating leases	2,136	1,647
Operating cash flows used for finance leases	89	82
Financing cash flows used for finance leases	$ 313	$ 254