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Goodwill and Other Intangibles (Amortizable Intangibles) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Amortizable Intangibles |  |
Amortizable intangible assets, cost | $ 24,351 | $ 29,847
Amortizable intangible assets, accumulated amortization expense | (14,959) | (18,518)
Net amortizable intangible assets | 9,392 | 11,329
Favorable Leases [Member] |  |
Amortizable Intangibles |  |
Amortizable intangible assets, cost | 22,500 | 27,960
Amortizable intangible assets, accumulated amortization expense | (14,495) | (18,104)
Net amortizable intangible assets | 8,005 | 9,856
Non-compete Agreements [Member] |  |
Amortizable Intangibles |  |
Amortizable intangible assets, cost | 1,851 | 1,887
Amortizable intangible assets, accumulated amortization expense | (464) | (414)
Net amortizable intangible assets | 1,387 | 1,473
Unfavorable Leases [Member] |  |
Amortizable Intangibles |  |
Amortizable intangibles, cost | 14,470 | 19,950
Amortizable intangibles, accumulated amortization benefit | 11,853 | 15,840
Net amortizable intangibles | $ 2,617 | $ 4,110

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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