Leases Lease payments and receipts (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

Future minimum annual lease payments and lease receipts under operating leases for the next five years and thereafter are:

(in thousands)	Lease Commitments		Lease Receipts
2017	$	1,605	$	19,480
2018	906		10,102
2019	713		10,329
2020	72		10,562
2021	3		10,779
Thereafter	—		156,133