XML 34 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8

Shareholders' equity (Tables)

9 Months Ended

Sep. 30, 2014

Shareholders' equity

Summary of Stock Option Activity under Plan

		For the Nine Months Ended,
		September 30, 2014						September 30, 2013
		Stock Options			Weighted-Average Exercise Price			Stock Options			Weighted-Average Exercise Price
Outstanding at beginning of the period			1,190,000		$	15.48			700,000		$	15.00
Granted			1,220,000			16.74			—			—
Exercised			(28,750	)		15.00			—			—
Forfeited			(216,250	)		15.70			(60,000	)		15.00
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Outstanding at end of the period			2,165,000		$	16.17			640,000		$	15.00
​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Exercisable at end of the period			131,250		$	15.00			—		$	—

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

Weighted-average fair value		$	4.89
Weighted-average remaining life (years)			9.4
Expected term (years)			7.0
Dividend yield			3.0	%
Volatility			37.3	%
Risk-free interest rate			2.2	%

X

- Details

Name:	us-gaap_EquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration