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Shares (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of common shares

Issued and outstanding:

		Common shares			Treasury shares			Common shares, net of treasury shares
Issued and outstanding at December 31, 2017		28,070,150			(2,617,926	)		25,452,224
Issued upon exercise of stock options		297,940			—			297,940
Issued upon conversion of convertible debentures		2,211			—			2,211
Purchase of treasury shares		—			(660,620	)		(660,620	)
Settlement of certain equity classified stock-based compensation		—			1,193,935			1,193,935
Retired through share purchase program		(1,281,485	)		—			(1,281,485	)
Issued and outstanding at December 31, 2018		27,088,816			(2,084,611	)		25,004,205
Issued upon exercise of stock options		327,000			—			327,000
Issued upon conversion of convertible debentures		87,096			—			87,096
Purchase of treasury shares		—			(735,857	)		(735,857	)
Settlement of certain equity classified stock-based compensation		—			1,095,001			1,095,001
Issued and outstanding at December 31, 2019		27,502,912			(1,725,467	)		25,777,445

Schedule of net income per share

Year ended December 31,	2019				2018
Net income available to common shareholders	$	36,878			$	15,286
Interest from convertible debentures (after tax)	3,590				1,792
Diluted net income available to common shareholders	$	40,468			$	17,078
Weighted-average number of common shares	25,444,374				24,991,517
Weighted-average effect of dilutive securities
Dilutive effect of treasury shares	1,898,645				2,394,824
Dilutive effect of stock options	255,378				357,026
Dilutive effect of 5.00% convertible debentures	1,647,487				—
Dilutive effect of 5.50% convertible debentures	3,597,327				3,684,424
Weighted-average number of diluted common shares	32,843,211				31,427,791
Basic net income per share	$	1.45			$	0.61
Diluted net income per share	$	1.23			$	0.54

Schedule of dividends

The Company will pay an annual aggregate dividend of $0.12 per common share in 2019 and intends to pay $0.16 in subsequent years, payable on a quarterly basis.

		Date declared		Per share				Shareholders on record as of		Paid or payable to shareholders		Total paid or payable
Q4 2018		October 29, 2018		$	0.02			November 30, 2018		January 4, 2019		$	500
Q1 2019		February 25, 2019		$	0.02			March 12, 2019		April 5, 2019		$	503
Q2 2019		April 30, 2019		$	0.02			May 31, 2019		July 5, 2019		$	505
Q3 2019		July 30, 2019		$	0.04			August 31, 2019		October 4, 2019		$	1,028
Q4 2019		October 29, 2019		$	0.04			November 30, 2019		January 3, 2020		$	1,030

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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