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Shareholders' equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Summary of Stock Option Activity under Plan

The following table summarizes stock option activity under the Plan for the years ended December 31, 2013 and 2012:

		Year ended December 31,
		2013								2012
		Stock Options				Weighted Average Exercise Price				Stock Options				Weighted Average Exercise Price
Outstanding at beginning of the year			700,000			$	15.00				—			$	—
Granted			550,000				16.03				700,000				15.00
Exercised			—				—				—				—
Forfeited			(60,000	)			15.00				—				—
Outstanding at end of the year			1,190,000			$	15.48				700,000			$	15.00
Exercisable at end of the year			160,000			$	15.00				—			$	—

Summary of Black-Scholes Option Pricing Model Inputs used for Valuation of Stock Options Outstanding

The following table summarizes the Black-Scholes Option Pricing Model inputs used for valuation of the stock options for Class A common shares issued during the year ended December 31, 2013:

Weighted average fair value		$	4.75
Weighted average remaining life (years)			9.9
Expected term (years)			7.0
Dividend Yield			3	%
Volatility			38	%
Risk-free interest rate			1.98	%

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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