Intangible Assets (Future Amortization) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Future Amortization
2019	$ 18,580
2020	18,530
2021	13,980
2022	10,120
2023	7,083
Thereafter	46,166
Intangible assets, net	$ 114,459
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Amortizing intangibles, weighted-average remaining useful life	7 years
Future Amortization
2019	$ 14,485
2020	14,435
2021	9,885
2022	6,025
2023	2,988
Thereafter	2,469
Intangible assets, net	$ 50,287
Favorable Lease Rates
Finite-Lived Intangible Assets [Line Items]
Amortizing intangibles, weighted-average remaining useful life	37 years
Future Amortization
2019	$ 228
2020	228
2021	228
2022	228
2023	228
Thereafter	7,288
Intangible assets, net	8,428
Host Relationships [Domain]
Future Amortization
2019	3,867
2020	3,867
2021	3,867
2022	3,867
2023	3,867
Thereafter	36,409
Intangible assets, net	$ 55,744

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Finite-Lived Intangible Assets, Weighted Average Original Useful Lives

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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