Intangible Assets (Future Amortization) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2016 USD ($)
Future Amortization
2013	$ 15,642
2014	3,351
2015	2,572
2016	1,871
2017	1,241
Thereafter	27,116
Intangible assets, net	$ 51,793
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Amortizing intangibles, weighted-average remaining useful life	5 years
Future Amortization
2013	$ 14,599
2014	2,308
2015	1,529
2016	828
2017	198
Thereafter	0
Intangible assets, net	$ 19,462
Favorable Lease Rates
Finite-Lived Intangible Assets [Line Items]
Amortizing intangibles, weighted-average remaining useful life	43 years 11 months
Future Amortization
2013	$ 1,043
2014	1,043
2015	1,043
2016	1,043
2017	1,043
Thereafter	27,116
Intangible assets, net	$ 32,331

Finite-Lived Intangible Assets, Total Future Amortization Expense

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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://www.xbrl.org/2003/role/presentationRef
-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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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth 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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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third 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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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second 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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