Allocated Share-based Compensation Expense, Including Restructuring

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- Definition

Maximum amount of shares of common stock permitted to be purchased for all employees under the Employee Stock Purchase Plan.

+ References

No definition available.

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- Definition

Amount of shares of common stock purchased by employees under the Employee Stock Purchase Plan in the current period.

+ References

No definition available.

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- Definition

Number Of Executives Departed

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No definition available.

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- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Distributed in Period

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Equity Compensation Plans - Additional Information (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) executive	Sep. 30, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for grant under Redwood's Incentive Plan (in shares)		1,469,991	1,787,974
Unrecognized compensation cost \| $		$ 17,979	$ 18,146
Equity compensation expense \| $		$ 7,634
Number of shares purchased by employees (in shares)		354,801	337,271
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested outstanding stock awards (in shares)		265,842	204,515
Number of stock awards granted (in shares)		134,364
Number of stock awards vested (in shares)		61,285
Number of stock awards forfeited (in shares)		11,752
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested outstanding stock awards (in shares)		1,869,577	1,848,861
Number of stock awards granted (in shares)		359,501
Number of stock awards vested (in shares)		1,006,394	939,899
Number of stock awards forfeited (in shares)		31,875
Number of stock awards distributed (in shares)		306,911
Equity compensation expense \| $	$ 3,000
Number of executives departed (in executives) \| executive	2
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested outstanding stock awards (in shares)		642,879	642,879
Performance Stock Units \| Performance Share Units (PSUs), 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)		3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average amortization period remaining for equity awards (less than)		2 years
Shares of common stock to be purchased in aggregate for all employees (in shares)		450,000