Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]
Shares issued on compensation plans	86,805	274,248	383,936	615,022
Repurchase of Class A Common shares	0	0	180,541	285,201
Common Stock, Dividends, Per Share, Declared	$ 0.05	$ 0.05	$ 0.10	$ 0.10
Common Stock, Dividends, Per Share, Cash Paid	$ 0.05	$ 0.05	$ 0.10	$ 0.10

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

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

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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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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