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.

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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.

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- Definition

Number Of Executives Departed

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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested, Number

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Average Closing Price Of Common Stock, Measurement Period

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Number Of Measurement Periods

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Number Of Vesting Tranches

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Total Stockholder Return, Measurement Period

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Total Share Return, Percentage

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Rate, Treasury Rate, Measurement Period

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-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.

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-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)
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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Paragraph 2
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ 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 (f)(2)(iii)
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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the 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 (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ 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 (f)(2)(iv)
-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.

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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.

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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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- Definition

Percentage of vesting of share-based compensation awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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Equity Compensation Plans - Additional Information (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended				12 Months Ended
	May 31, 2014	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Mar. 31, 2016 USD ($) executive	Dec. 31, 2015 $ / shares shares	Dec. 31, 2017 USD ($) tranche measurement_period $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares 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)		1,356,438	1,787,974			1,356,438	1,787,974
Unrecognized compensation cost \| $		$ 21,470	$ 18,146			$ 21,470	$ 18,146
Equity compensation expense \| $						10,141	9,093	$ 11,921
Share-based compensation expense including restructuring \| $						$ 10,141
Number of shares purchased by employees (in shares)						361,006
Performance Share Units (PSUs), 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value assumptions, average closing stock price of common stock, measurement period (in days)						60 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost \| $		3,000				$ 3,000
Weighted average amortization period remaining for equity awards (in years)						2 years
Equity compensation expense \| $						$ 1,000	$ 1,000	$ 1,000
Number of stock awards granted (in shares)						134,364	144,056	141,069
Number of stock awards forfeited (in shares)						19,444	76,614	20,678
Number of stock awards vested (in shares)						61,928	50,107	42,675
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost \| $		$ 13,000				$ 13,000
Equity compensation expense \| $						$ 6,000	$ 9,000	$ 7,000
Unvested outstanding stock awards (in units)		988,656	908,963		1,043,606	988,656	908,963	1,043,606
Weighted-average grant date fair value of stock awards (in dollars per unit) \| $ / shares		$ 15.20	$ 14.96		$ 17.22	$ 15.20	$ 14.96	$ 17.22
Share-based compensation expense including restructuring \| $				$ 3,000
Number of executives departing \| executive				2
Number of stock awards vested (in units)		889,835	939,899		1,363,548	889,835	939,899	1,363,548
Number of stock awards granted (in shares)						565,921	565,061	583,958
Number of stock awards forfeited (in shares)						31,875	62,894	10,167
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost \| $		$ 5,000				$ 5,000
Equity compensation expense \| $						$ 2,000	$ 3,000	$ 3,000
Unvested outstanding stock awards (in units)		704,270	642,879			704,270	642,879
Weighted-average grant date fair value of stock awards (in dollars per unit) \| $ / shares		$ 11.17	$ 13.24		$ 9.46	$ 11.17	$ 13.24	$ 9.46
Share-based compensation expense including restructuring \| $				$ 600
Number of executives departing \| executive				2
Number of stock awards granted (in shares)						273,054	194,484	356,762
Number of stock awards forfeited (in shares)						0	208,330	0
Performance Stock Units \| Performance Share Units (PSUs), 2015 and 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)						3 years
TSR performance period (in years)						3 years
Award vesting rights, total share return, percentage						125.00%
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
TSR performance period (in years)						2 years
Performance shares, number of measurement periods \| measurement_period						4
Performance shares, number of vesting tranches \| tranche						4
Grant date fair value assumptions, average closing stock price of common stock, measurement period (in days)						60 days
Grant date fair value assumptions, volatility rate						29.00%
Grant date fair value assumptions, risk-free rate						1.57%
Grant date fair value assumptions, dividend yield						0.00%
Grant date fair value assumptions, dividend rate, risk-free rate, treasury rate measurement period (in years)						3 years
Performance Stock Units \| Performance Share Units (PSUs), 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR performance period (in years)						3 years
Grant date fair value assumptions, volatility rate						27.00%
Grant date fair value assumptions, risk-free rate						1.90%
Grant date fair value assumptions, dividend yield						0.00%
Performance Stock Units \| Performance Share Units (PSUs), 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR performance period (in years)						3 years
Grant date fair value assumptions, average closing stock price of common stock, measurement period (in days)						40 days
Grant date fair value assumptions, volatility rate						26.00%
Grant date fair value assumptions, risk-free rate						1.35%
Grant date fair value assumptions, dividend yield						0.00%
Grant date fair value assumptions, dividend rate, risk-free rate, treasury rate measurement period (in years)						3 years
Performance Stock Units \| Performance Share Units (PSUs), 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR performance period (in years)		3 years
Number of stock awards vested (in shares)		0
Performance Stock Units \| Performance Share Units (PSUs), 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR performance period (in years)			3 years
Number of stock awards vested (in shares)			0
Performance Stock Units \| Performance Share Units (PSUs), 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR performance period (in years)					3 years
Number of stock awards vested (in shares)					57,049
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average amortization period remaining for equity awards (in years)						2 years
Share-based compensation, vesting period (in years)	4 years
Shares of common stock to be purchased in aggregate for all employees (in shares)		450,000				450,000
Maximum \| Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average amortization period remaining for equity awards (in years)						2 years
Maximum \| Performance Stock Units \| Performance Share Units (PSUs), 2015 and 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting percentage						200.00%
Maximum \| Performance Stock Units \| Performance Share Units (PSUs), 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting percentage						200.00%
Award vesting rights, total share return, percentage						72.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)	3 years
Minimum \| Performance Stock Units \| Performance Share Units (PSUs), 2015 and 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting percentage						0.00%
Minimum \| Performance Stock Units \| Performance Share Units (PSUs), 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting percentage						0.00%