Summary of Significant Accounting Policies (Equity-Based Compensation, Taxes, Derivatives) (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2014
Income Tax Disclosure
Percentage of annual REIT taxable income intended to be distributed to stockholders	100.00%
Income tax expense	$ 0
Deferred tax assets, TRS	$ 22,300,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of restricted share units (RSUs)		3 years

Represents the percentage of annual REIT taxable income that the entity intends to distribute to its stockholders.

No definition available.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the entity's investment in its wholly-owned subsidiaries.

+ References

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- References

No definition available.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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