Asset Acquisitions and Dispositions - Fair Value of Assets Acquired and Liabilities Assumed (Details) - MSR Acquisition $ in Thousands	9 Months Ended
Sep. 30, 2016 USD ($)
Estimated fair value of assets acquired:
Land	$ 123,793
Rental residential properties	499,307
Real estate owned	19,437
Prepaid expenses and other assets	9,809
Total preliminary allocation of purchase price	652,346
Source of funds:
Cash on hand	163,087
Debt financing (Note 6)	489,259
Total purchase price	$ 652,346

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Real Estate Owned

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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.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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