Equity-Based Compensation - Additional Information (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	0	0	0
Stock options exercised (in shares)	10,000	4,167	43,774
Intrinsic value of stock options exercised	$ 12,000	$ 100,000	$ 1,200,000
Proceeds from options exercised	128,000	61,000	798,000
Tax benefit realized for deductions from stock options exercises	3,000	14,000	400,000
Unrecognized compensation expense related to stock options	0
Stock options excluded
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized equity-based compensation		1,400,000	2,500,000
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized equity-based compensation	$ 8,200,000	$ 7,600,000	$ 7,100,000
Awards share units granted (in shares)	814,387	415,110	156,164
Recognized weighted-average period	1 year 9 months 18 days
Unrecognized compensation expense related to awards	$ 10,500,000
Grant date fair value of awards granted (in dollars per share)	$ 13.42
Vesting period for awards of equity instruments	3 years
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized equity-based compensation	$ 7,700,000	$ 13,300,000	$ 15,500,000
Awards share units granted (in shares)	607,130	261,500	90,501
Recognized weighted-average period	1 year 8 months 12 days
Unrecognized compensation expense related to awards	$ 7,400,000
Grant date fair value of awards granted (in dollars per share)	$ 15.58	$ 31.24	$ 67.69
Vesting period for awards of equity instruments	3 years
2011 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock that may be issued (in shares)	1,769,759

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

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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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 difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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