Derivatives, Hedges, Financial Instruments and Carbon Credits (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following details our assets and liabilities that are measured at fair value on a recurring basis at December 31, 2013 and 2012:


			Fair Value Measurements at December 31, 2013 Using
Description	Total Fair Value at December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value at December 31, 2012
	(In Thousands)
Assets—Supplies, prepaid items and other:
Commodities contracts	$	31	$	31	$	—	$	—	$	79
Carbon credits		1,284		—		—		1,284		91

Total	$	1,315	$	31	$	—	$	1,284	$	170

Liabilities—Current and noncurrent accrued and other liabilities:
Contractual obligations—carbon credits	$	1,284	$	—	$	—	$	1,284	$	91
Interest rate contracts		1,240		—		1,240		—		1,874

Total	$	2,524	$	—	$	1,240	$	1,284	$	1,965

Reconciliation of Beginning and Ending Balances for Assets and Liabilities Measured at Fair Value on Recurring Basis

The following is a reconciliation of the beginning and ending balances for assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


	Assets									Liabilities
	2013			2012			2011			2013			2012			2011
	(In Thousands)
Beginning balance	$	91		$	42		$	644		$	(91	)	$	(42	)	$	(644	)
Transfers into Level 3		—			—			—			—			—			—
Transfers out of Level 3		—			—			—			—			—			—
Total realized and unrealized gains (losses) included in earnings		1,233			876			1,995			(1,233	)		(721	)		(1,844	)
Purchases		—			—			—			—			—			—
Issuances		—			—			—			—			—			—
Sales		(40	)		(827	)		(2,597	)		—			—			—
Settlements		—			—			—			40			672			2,446

Ending balance	$	1,284		$	91		$	42		$	(1,284	)	$	(91	)	$	(42	)

Total gains (losses) for the period included in earnings attributed to the change in unrealized gains or losses on assets and liabilities still held at the reporting date	$	1,193		$	78		$	42		$	(1,193	)	$	(78	)	$	(42	)

Net Gains (Losses) Included in Earnings and Income Statement Classifications

Net gains (losses) included in earnings and the income statement classifications are as follows:


	2013			2012			2011
	(In Thousands)
Cost of sales—Commodities contracts	$	(244	)	$	14		$	(523	)
Cost of sales—Foreign exchange contracts		—			(19	)		46
Other income—Carbon credits		1,233			876			1,995
Other expense—Contractual obligations relating to carbon credits		(1,233	)		(721	)		(1,844	)
Interest expense—Interest rate contracts		(33	)		(523	)		(1,925	)

Total net losses included in earnings	$	(277	)	$	(373	)	$	(2,251	)