Shareholders' Equity - Dividend Reinvestment Program (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividend Reinvestment Program
Issuance of common shares (in shares)	173	81	80
Weighted average price per share (in dollars per share)	$ 27.58	$ 29.18	$ 32.25
Net proceeds	$ 4,755	$ 1,973	$ 2,576

Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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- Definition

Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity.

+ References

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- Definition

Dividend Reinvestment Program [Abstract]

+ References

No definition available.

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- Definition

Stock issued during period, weighted share price, Dividend Reinstated Plan

+ References

No definition available.

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