Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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

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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).

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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.

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-Section 50
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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

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Equity - Restricted stock (Details) - Restricted stock - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020
Number of Shares
Unvested, beginning (in shares)	838,852	627,251	785,454	411,497	627,251
Awarded (in shares)	10,194	386,146	29,847	375,068
Vested (in shares)	(80,203)	(141,700)	(67,674)	(706)
Forfeited (in shares)	(37,164)	(32,845)	(7,896)	(405)
Unvested, end (in shares)	731,679	838,852	739,731	785,454	731,679
Other non-option information
Unrecognized compensation costs	$ 6,918				$ 6,918
Expected period for recognizing compensation expense					2 years 7 months 6 days
First vesting period
Number of Shares
Unvested, end (in shares)	102,164				102,164
Second vesting period
Number of Shares
Unvested, end (in shares)	264,046				264,046
Third vesting period
Number of Shares
Unvested, end (in shares)	249,839				249,839
Fourth vesting period
Number of Shares
Unvested, end (in shares)	115,630				115,630