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Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units shares in Thousands	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares outstanding | shares	603
Number of shares granted | shares	150
Number of shares released | shares	(77)
Number of shares expired and forfeited | shares	(22)
Number of shares outstanding | shares	654
Number of shares outstanding, weighted average grant date fair value | $ / shares	$ 15.84
Number of shares granted, weighted average grant date fair value | $ / shares	15.29
Number of shares released, weighted average grant date fair value | $ / shares	15.98
Number of shares expired and forfeited, weighted average grant date fair value | $ / shares	16.06
Number of shares outstanding, weighted average grant date fair value | $ / shares	$ 15.69

X

- Definition

Share based compensation arrangement by share based payment award equity instruments other than options forfeitures and expirations in period.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options forfeitures and expirations in period weighted average grant date fair value.

+ References

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options released in period.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options released in period weighted average grant date fair value.

+ References

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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://fasb.org/us-gaap/role/ref/legacyRef
-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=120381028&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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://fasb.org/us-gaap/role/ref/legacyRef
-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=120381028&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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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-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=120381028&loc=d3e5070-113901

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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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