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Equity - Stock Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Aug. 31, 2020
Equity [Abstract]
Stock repurchased during period (in shares)	3.7	6.2
Common stock value repurchased including acquisition costs	$ 41,400,000	$ 58,800,000
Average cost per share of repurchased shares (in dollars per share)	$ 11.32	$ 9.44
Stock repurchase program, authorized amount			$ 50,000,000.0
Stock repurchase program remaining authorized amount	$ 40,800,000

X

- Definition

Common Stock Acquired, Average Cost Per Share

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X

- Definition

Common Stock Value Acquired Including Acquisition Costs

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No definition available.

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- Definition

Amount of stock repurchase plan authorized.

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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