Subsequent Event (Details) - Subsequent Event - Agency Platform - ACM / Our "Manager" $ / shares in Units, shares in Thousands, $ in Millions	Feb. 25, 2016 USD ($) $ / shares shares
Subsequent Event [Line Items]
Acquisition purchase price	$ 250.0
Consideration in stock (as a percent)	50.00%
Consideration in cash (as a percent)	50.00%
Consideration in stock to be paid with operating partnership units (in shares) \| shares	19,230
Stock consideration paid in the form of operating partnership units (USD per partnership unit) \| $ / shares	$ 6.50
Option
Subsequent Event [Line Items]
Period to exercise the option to purchase the existing management contract	2 years
Consideration to purchase the existing management contract	$ 25.0
Maximum \| Option
Subsequent Event [Line Items]
Seller financing used to satisfy the cash portion of the consideration	$ 50.0

Numbers of operating partnership units paid in a business combination.

No definition available.

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- Definition

Per operating partnership unit amount of stock paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

Amount of seller financing used to satisfy the consideration in a business combination.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred to purchase the existing management contract, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

No definition available.

+ Details

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- Definition

Percentage of business combination consideration is transferred in cash.

+ References

No definition available.

+ Details

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- Definition

Percentage of business combination consideration is transferred in stock.

+ References

No definition available.

+ Details

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- Definition

Represents the number of years to purchase the existing management contract.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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