Sales Contracts (Tables)

12 Months Ended

Dec. 31, 2017

Acquired Sales Contracts [Abstract]

Schedule of Sales Contracts

The sales contracts reflected in the consolidated balance sheets are as follows:

	December 31, 2017								December 31, 2016
	Assets			Liabilities			Net Total		Assets			Liabilities			Net Total
	(In thousands)								(In thousands)
Original fair value	$	97,196		$	31,742				$	97,196		$	31,742
Accumulated amortization	(84,760		)	(29,979		)			(25,625		)	(24,829		)
Total	$	12,436		$	1,763		$	10,673	$	71,571		$	6,913		$	64,658
Balance Sheet classification:
Other current	$	12,432		$	934				$	59,702		$	5,114
Other noncurrent	$	4		$	829				$	11,869		$	1,799