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Summary of RSU Activity (Details) - RSUs [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units Outstanding
Restricted Stock Units Outstanding, Beginning of year	232,299		141,296
Restricted Stock Units Outstanding, Granted	564,805	241,542
Restricted Stock Units Outstanding, Vested	(103,224)		(111,660)
Restricted Stock Units Outstanding, Cancelled	(32,622)	(9,243)	(29,636)
Restricted Stock Units Outstanding, End of year	661,258	232,299
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning of year	$ 29.10		$ 12.57
Weighted Average Grant Date Fair Value, Granted	13.88	$ 29.09
Weighted Average Grant Date Fair Value, Vested	29.61		12.57
Weighted Average Grant Date Fair Value, Cancelled	20.77	28.72	$ 12.57
Weighted Average Grant Date Fair Value, End of year	$ 16.44	$ 29.10
Total Fair Value of Shares Vested	$ 1,596		$ 2,556

X

- Definition

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

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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 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).

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

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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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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