Aggregate dividends paid during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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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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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Common Stock and Share-Based Compensation - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized (shares)		1,000,000
Common stock, shares authorized (shares)		250,000,000
Common stock, par value (USD per share)		$ 0.01		$ 0.01
Payments of dividends		$ 0	$ 8,218,000
Dividends paid (USD per share)	$ 0.09
Unrecognized stock option expense related to unvested awards		0
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount for common share repurchase threshold		$ 2,380,000,000.00
Repurchase of common stock (shares)		0	0
Remaining authorized amount for common share repurchase		$ 197,100,000