Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
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| Income Tax Disclosure [Abstract] | |||||
| Federal income tax rate applicable to corporations | 21.00% | 35.00% | |||
| Tax provision related to the decrease in the federal income tax rate applicable to corporations | $ 17,500 | ||||
| Percent of REIT taxable income the entity intends to distribute | 100.00% | 100.00% | |||
| Provision for (benefit from) income taxes | $ 37,409 | $ (5,342) | $ 35,142 | $ (21,100) | |
| Valuation allowance on deferred tax assets | $ 2,400 | $ 2,400 | $ 2,700 | ||
| X | ||||||||||
- Definition Percent of REIT taxable income the entity currently intends to distribute to stockholders. No definition available.
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| X | ||||||||||
- Definition Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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