GUARANTOR - Condensed Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets Abstract
Current Assets	$ 110,004us-gaap_AssetsCurrent	$ 91,266us-gaap_AssetsCurrent
Property And Equipment - Net	44,662us-gaap_PropertyPlantAndEquipmentNet	44,439us-gaap_PropertyPlantAndEquipmentNet
Deferred Charges And Other Assets - Net	13,239us-gaap_OtherAssetsNoncurrent	17,501us-gaap_OtherAssetsNoncurrent
Assets	926,615us-gaap_Assets	912,688us-gaap_Assets
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities Current	30,761us-gaap_LiabilitiesCurrent	29,652us-gaap_LiabilitiesCurrent
Liabilities Noncurrent	566,833us-gaap_LiabilitiesNoncurrent	584,643us-gaap_LiabilitiesNoncurrent
Liabilities, Total	597,594us-gaap_Liabilities	614,295us-gaap_Liabilities
Stockholders Equity Abstract
Common Stock Value	391us-gaap_CommonStockValue	385us-gaap_CommonStockValue
Additional Paid In Capital Common Stock	608,515	604,721
Retained Earnings Accumulated Deficit	(279,885)	(306,713)
Accumulated Other Comprehensive Income Loss Net Of Tax	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	329,021	298,393	269,494	253,688
Liabilities And Stockholders Equity	926,615	912,688
Parent Company [Member]
Assets Abstract
Current Assets	6,446	4,330
Property And Equipment - Net	495	727
Deferred Charges And Other Assets - Net	2,233	2,564
Investments In Affiliates Subsidiaries Associates And Joint Ventures	360,091	328,116
Assets	369,265	335,737
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities Current	14,041	11,317
Liabilities Noncurrent	26,203	26,027
Liabilities, Total	40,244	37,344
Stockholders Equity Abstract
Common Stock Value	391	385
Additional Paid In Capital Common Stock	608,515	604,721
Retained Earnings Accumulated Deficit	(279,885)	(306,713)
Accumulated Other Comprehensive Income Loss Net Of Tax	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	329,021	298,393	269,494	253,688
Liabilities And Stockholders Equity	$ 369,265	$ 335,737

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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