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Shareholders' Equity - Additional Information (Details) - USD ($)	Dec. 31, 2019	Sep. 16, 2011
Equity [Abstract]
Value of shares authorized under repurchase program		$ 215,000,000.0
Value of shares available for repurchase pursuant to repurchase program	$ 101,000,000.0

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- Definition

Amount of stock repurchase plan authorized.

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- Definition

Amount remaining of a stock repurchase plan authorized.

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No definition available.

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