Income Taxes (Schedule of Net Deferred Tax Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Net operating loss and tax credit carryforwards	$ 122,152	$ 132,820
Compensation and benefits	1,790	1,590
Indemnification liabilities	9,114	5,946
Other, net	4,850	4,909
Federal benefit of uncertain tax positions	10,026	10,216
Pension costs	6,752	1,154
Total deferred tax assets before valuation allowance	154,684us-gaap_DeferredTaxAssetsGross	156,635us-gaap_DeferredTaxAssetsGross
Less valuation allowance	(7,905)	(7,228)
Deferred tax assets net of valuation allowance	146,779us-gaap_DeferredTaxAssetsNet	149,407us-gaap_DeferredTaxAssetsNet
Deferred installment sale	(12,376)	(37,974)
Investments in and advances to affiliates	(22,082)	(28,848)
Total deferred tax liabilities	(34,458)us-gaap_DeferredIncomeTaxLiabilities	(66,822)us-gaap_DeferredIncomeTaxLiabilities
Current deferred tax assets	654	3,784
Long-term deferred tax assets	112,898	83,708
Other current liabilities	(416)
Long-term liabilities	(815)	(4,907)
Net deferred tax assets	$ 112,321us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 82,585us-gaap_DeferredTaxAssetsLiabilitiesNet

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from the resolution or settlement of liabilities for uncertain tax positions, which can only be deducted for tax purposes when relevant liabilities are ultimately resolved or settled, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

No definition available.