Equity Incentive Awards - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 3.0	$ 2.4
Restricted Stock \| 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (shares)		90,933
Shares categorized as vesting (percent)		50.00%
Vesting period	3 years
Fair value of shares issued		$ 3.3
Shares categorized as performance based (percent)	50.00%
Restricted Stock \| 2014 Plan \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Restricted Stock \| 2014 Plan \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Restricted Stock \| 2014 Plan \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Performance Shares \| 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares issued	$ 1.1
Grants in period (in shares)	15,154

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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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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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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Percentage of vesting of award under share-based payment arrangement.

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