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Stockholders' Equity:Shares and Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	May 02, 2019	Mar. 31, 2019	Mar. 31, 2018
Subsequent Event [Line Items]
Dividends declared per common share		$ 0.09	$ 0.07
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock, Dividends, Per Share, Cash Paid		$ 0.09	$ 0.07
Dividends paid on common stock		$ (4,053)	$ (2,758)
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared	May 02, 2019
Dividends Payable, Date to be Paid	Jun. 17, 2019
Dividends Payable, Date of Record	Jun. 03, 2019
Dividends declared per common share	$ 0.09

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
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Aggregate dividends declared during the period for each share of common stock outstanding.

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Date the declared dividend will be paid, in CCYY-MM-DD format.

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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