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Consolidated Statements of Stockholders' Equity (Parenthetical) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) shares
Statement of Stockholders' Equity [Abstract]
Other comprehensive income, tax expense | $	$ (781)
Purchase and retirement of common stock (in shares) | shares	11,086,082

X

- Definition

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

+ References

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

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