CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) [Abstract]
Net loss	$ (6,883)us-gaap_NetIncomeLoss	$ (11,094)us-gaap_NetIncomeLoss
Other comprehensive income
Employee pension plan adjustments, net of taxes	231	112
Comprehensive loss	$ (6,652)us-gaap_ComprehensiveIncomeNetOfTax	$ (10,982)us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Name:	us-gaap_NetIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration