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Income Taxes (Schedule of Deferred Tax Asset (Liability)) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Components of Deferred Tax Assets and Liabilities [Abstract] |  |
NOLs and tax credit carry forwards | $ 69,771 | $ 82,636
Compensation and benefit plans | 30,880 | 49,710
Allowance for doubtful accounts | 370 | 421
Fixed assets and intangible assets | 24,737 | 46,595
Interest rate swap contracts | 1,893 | 2,884
Accrued interest expense | 13,049 | 11,567
Other liabilities | 12,562 | 20,811
Deferred tax asset | 153,262 | 214,624
Valuation allowance | (57,121) | (71,563)
Net deferred tax asset, noncurrent | 96,141 | 143,061
Prepaid liabilities | (501) | (819)
Fixed assets and intangible assets | (61,127) | (78,616)
Investments in partnerships | (103,474) | (177,376)
Other assets | (20,657) | (23,444)
Deferred tax liability, noncurrent | 185,759 | 280,255
Total net deferred tax liability | $ (89,618) | $ (137,194)

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- Definition The cumulative amount of the estimated future tax effects attributable to the difference between the tax basis of fixed assets and intangible assets, and the basis of fixed assets and intangible assets computed in accordance with generally accepted accounting principles. The difference in basis, whether due to amortization or other reasons, will increase future taxable income when such difference reverses. Intangible assets include, but are not limited to, assets such as patents, trademarks and customer lists. + References No definition available. + Details
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- Definition The cumulative amount of the estimated future tax effects attributable to the difference between the tax basis of fixed assets and intangible assets, and the basis of fixed assets and intangible assets computed in accordance with generally accepted accounting principles. The difference in basis, whether due to amortization or other reasons, will increase future taxable income when such difference reverses. Intangible assets include, but are not limited to, assets such as patents, trademarks and customer lists. + References No definition available. + Details
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31931-109318 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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