Participating Mortgage Loans, Fair Value Disclosure

No definition available.

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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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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

No definition available.

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- Definition

Fair value of investments in debt securities classified as held-to-maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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- Definition

Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of mortgage loans held-for-sale.

+ References

No definition available.

+ Details

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3044-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restricted cash	$ 57,665	$ 62,457	$ 67,438
Securities, held-to-maturity	0	146,352
Level 1 [Member] \| Carrying Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash and cash equivalents	214,016	200,996
Restricted cash	57,665	62,457
Convertible senior notes, net	(250,949)	(249,994)
Level 1 [Member] \| Estimated Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash and cash equivalents	214,016	200,996
Restricted cash	57,665	62,457
Convertible senior notes, net	(274,262)	(268,124)
Level 3 [Member] \| Carrying Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Securities, held-to-maturity	0	146,352
Borrowings under repurchase agreements	(1,340,254)	(1,146,566)
Level 3 [Member] \| Carrying Value [Member] \| Commercial Mortgage Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial mortgage and subordinate loans	2,037,971	1,641,856
Level 3 [Member] \| Carrying Value [Member] \| Subordinate Mortgage Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial mortgage and subordinate loans	1,240,363	1,051,236
Level 3 [Member] \| Estimated Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Securities, held-to-maturity	0	146,352
Borrowings under repurchase agreements	(1,338,368)	(1,146,807)
Level 3 [Member] \| Estimated Fair Value [Member] \| Commercial Mortgage Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial mortgage and subordinate loans	2,034,082	1,648,896
Level 3 [Member] \| Estimated Fair Value [Member] \| Subordinate Mortgage Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial mortgage and subordinate loans	1,244,548	1,060,882
Level 3 [Member] \| Participating Mortgages [Member] \| Carrying Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Participations sold	0	(84,979)
Level 3 [Member] \| Participating Mortgages [Member] \| Estimated Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Participations sold	$ 0	$ (85,072)