Derivative instruments (Tables)

6 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative instruments, gain (losses)

The gains and losses on derivative instruments were as follows:

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2016		2015			2016		2015
	(In thousands)
Interest rate derivatives designated as cash flow hedges:
Amount of loss reclassified from accumulated other comprehensive loss into interest expense (effective portion), net of tax	$	91	$	100		$	183	$	199
Commodity derivatives not designated as hedging instruments:
Amount of loss recognized in discontinued operations, before tax	—		(8,101		)	—		(19,309		)

Derivative instruments

The location and fair value of the gross amount of the Company's derivative instruments on the Consolidated Balance Sheets were as follows:

Asset Derivatives	Location on Consolidated Balance Sheets	Fair Value at June 30, 2015
		(In thousands)
Not designated as hedges:
Commodity derivatives	Current assets held for sale	$	2,537
Total asset derivatives		$	2,537

Liability Derivatives	Location on Consolidated Balance Sheets	Fair Value at June 30, 2015
		(In thousands)
Not designated as hedges:
Commodity derivatives	Current liabilities held for sale	$	3,511
Total liability derivatives		$	3,511

Offsetting assets and liabilities master netting

The gross derivative assets and liabilities (excluding settlement receivables and payables that may be subject to the same master netting agreements) presented on the Consolidated Balance Sheets and the amount eligible for offset under the master netting agreements is presented in the following table:

June 30, 2015	Gross Amounts Recognized on the Consolidated Balance Sheets		Gross Amounts Not Offset on the Consolidated Balance Sheets			Net
	(In thousands)
Assets:
Commodity derivatives	$	2,537	$	(2,537	)	$	—
Total assets	$	2,537	$	(2,537	)	$	—
Liabilities:
Commodity derivatives	$	3,511	$	(2,537	)	$	974
Total liabilities	$	3,511	$	(2,537	)	$	974