Leasing Arrangements (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Future estimated minimum payments under capital leases and non-cancelable operating leases

The future estimated minimum payments under capital leases and non-cancelable operating leases with initial lease terms in excess of one year at December 31, 2014, are as follows:

	Capital		Operating
(Thousands)	Leases		Leases
2015	$	1,064	$	6,474
2016	1,064		5,875
2017	1,064		4,359
2018	1,064		3,550
2019	1,064		3,017
2020 and thereafter	3,639		9,461
Total minimum lease payments	8,959		$	32,736
Amounts representing interest	1,747
Present value of net minimum lease payments	$	7,212