Stock-Based Compensation - Performance Share Units (Details) - Performance share units - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining recognition period of unrecognized stock-based compensation costs	8 months 12 days
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to unvested options (up to)	$ 0.1
Long-term incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (in shares)	302,969	7,940
Executive Management \| Long-term incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit granted to an executive (in shares)	96,056	125,232
Vested (in shares)		0

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

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