Share Capital (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Performance Shares and Time Based Award Activity

The following table summarizes information about time based and financial performance-based restricted stock and restricted stock unit awards granted under the 2005 Incentive Plan, 2008 Key Partner Incentive Plan and 2011 Stock Incentive Plan:



	Performance Based Awards				Time Based Awards
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Balance at December 31, 2011	2,070,835		$	10.54	877,349		$	8.57
Granted	1,130,844		8.70		375,356		7.78
Vested	(2,621,981	)	9.63		(395,187	)	8.17
Forfeited	(44,919	)	10.44		(22,080	)	9.88
Balance at December 31, 2012	534,779		$	10.73	835,438		$	8.48
Granted	300,756		8.97		2,612,520		16.83
Vested	(353,858	)	10.63		(2,499,083	)	15.79
Forfeited	(19,011	)	7.90		(35,087	)	10.91
Balance at December 31, 2013	462,666		$	9.79	913,788		$	12.54
Granted	120,578		25.09		293,705		21.99
Vested	(497,214	)	9.62		(264,478	)	10.88
Forfeited	—		—		(26,874	)	11.52
Balance at December 31, 2014	86,030		$	23.14	916,141		$	16.36

Schedule of Share-based Compensation, Stock Options, Activity

Information related to share option transactions grant under all plans over the past three years is summarized as follows:



	Options Outstanding				Options Exercisable			Non Vested Options
	Number Outstanding		Weighted Average Price per Share		Number Outstanding	Weighted Average Price per Share
Balance at December 31, 2011	132,120		$	6.08	124,620	$	6.09	7,500
Vested	—		—					(7,500	)
Granted	—		—					—
Exercised	(4,728	)	5.79					—
Expired and cancelled	(14,892	)	5.19					—
Balance at December 31, 2012	112,500		$	6.35	112,500	$	6.35	—
Vested	—		—					—
Granted	—		—					—
Exercised	—		—					—
Expired and cancelled	—		—					—
Balance at December 31, 2013	112,500		$	6.03	112,500	$	6.03	—
Vested	—		—					—
Granted	—		—					—
Exercised	—		—					—
Expired and cancelled	—		—					—
Balance at December 31, 2014	112,500		$	5.70	112,500	$	5.70	—

Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity

SAR’s granted and outstanding are as follows:



	SAR’s Outstanding				SAR’s Exercisable			Non Vested SAR’s
	Weighted Average Number Outstanding		Weighted Average Price per Share		Number Outstanding	Price per Share
Balance at December 31, 2011	4,737,194		$	2.50	3,100,685	$	2.50	1,636,509
Vested	—		—					(1,570,539	)
Granted	—		—					—
Exercised	(104,048	)	2.94					(65,970	)
Expired and cancelled	—		—					—
Balance at December 31, 2012	4,633,146		$	2.49	4,633,146	$	2.49	—
Vested	—		—					—
Granted	—		—					—
Exercised	(4,633,146	)	2.49					—
Expired and cancelled	—		—					—
Balance at December 31, 2013	—		$	—	—	$	—	—
Vested	—		—					—
Granted	—		—					—
Exercised	—		—					—
Expired and cancelled	—		—					—
Balance at December 31, 2014	—		$	—	—	$	—	—

Schedule of Share-based Compensation, Equity Value Appreciation Awards Activity

Information related to EVAR transactions over the past three years is summarized as follows:



	EVARs Outstanding				EVARs Exercisable			Non Vested EVARs
	Number Outstanding		Weighted Average Issuance Price per Share		Number Outstanding	Weighted Average Issuance Price per Share
Balance at December 31, 2011	2,052,000		$	15.33	—	$	—	2,052,000
Vested	—		—					—
Granted	—		—					—
Expired and cancelled	(135,000	)	15.33					(135,000	)
Balance at December 31, 2012	1,917,000		$	15.33	—	$	—	1,917,000
Vested	(1,917,000	)	15.33					(1,917,000	)
Granted	—		—					—
Expired and cancelled	—		—					—
Balance at December 31, 2013	—		$	—	—	$	—	—
Vested	—		—					—
Granted	—		—					—
Expired and cancelled	—		—					—
Balance at December 31, 2014	—		$	—	—	$	—	—

Employee Stock Option

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Activity

Share options outstanding as of December 31, 2014 are summarized as follows:



	Options Outstanding				Options Exercisable
Range of Exercise Prices	Outstanding Number	Weighted Average Contractual Life	Weighted Average Price per Share		Exercisable Number	Weighted Average Price per Share		Weighted Average Contractual Life
$5.63 – $5.83	112,500	1.8	$	5.70	112,500	$	5.70	1.8