Noncontrolling Interest in Operating Partnership - Additional Information (Details) $ / shares in Units, $ in Thousands	9 Months Ended
Sep. 30, 2018 USD ($) $ / shares shares
Noncontrolling Interest [Line Items]
Ownership percentage in joint venture	9.00%
Period used as a denomination to determine the average closing price of common stock	10 days
Ten day average closing stock price (in dollars per share) \| $ / shares	$ 87.17
OP units outstanding (in units) \| shares	5,631,138
Consideration to be paid on redemption of common OP units \| $	$ 490,866
Common Stock
Noncontrolling Interest [Line Items]
OP units conversion ratio	1
Operating Partnership
Noncontrolling Interest [Line Items]
Ownership interest held by entity	91.00%

Represents the period over which the average market closing price is measured.

No definition available.

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- Definition

The average closing market price of the entity's common stock.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Represents the amount the entity would have paid in cash to redeem the operating partnership units.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Shareholders' Equity, Units Conversion Ratio

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The number of units or equivalent units outstanding for all classes.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB TOPIC 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Details

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- Details

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