Share Capital (Tables)
 12 Months Ended
Dec. 31, 2013
Schedule of Share-based Compensation, Performance Shares and Time Based Award Activity [Table Text Block]
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, 2010
 
 
752,885
 
 
$
5.89
 
 
 
924,101
 
 
$
4.93
 
Granted
 
 
1,646,631
 
 
 
12.26
 
 
 
446,280
 
 
 
11.29
 
Vested
 
 
(326,546
) 
 
 
8.49
 
 
 
(430,851
) 
 
 
3.45
 
Forfeited
 
 
(2,135
) 
 
 
9.73
 
 
 
(62,181
) 
 
 
5.86
 
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
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
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, 2010
 
 
324,300
 
 
$
6.27
 
 
 
286,800
 
 
$
6.27
 
 
 
37,500
 
Vested
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
(30,000
) 
Granted
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
—
 
Exercised
 
 
(169,628
) 
 
 
5.96
 
 
 
  
 
 
 
  
 
 
 
—
 
Expired and cancelled
 
 
(22,552
) 
 
 
8.38
 
 
 
  
 
 
 
  
 
 
 
—
 
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
 
 
 
—
 
Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block]
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, 2010
 
 
4,996,655
 
 
$
2.52
 
 
 
2,665,551
 
 
$
2.51
 
 
 
2,331,104
 
Vested
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
(435,134
) 
Granted
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
—
 
Exercised
 
 
(259,461
) 
 
 
2.82
 
 
 
  
 
 
 
  
 
 
 
(259,461
) 
Expired and cancelled
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
—
 
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
 
 
—
 
 
$
—
 
 
 
—
 
 
$
—
 
 
 
—
 
Schedule of Share-based Compensation, Equity Value Appreciation Awards Activity [Table Text Block]
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, 2010
 
 
—
 
 
$
—
 
 
 
—
 
 
$
—
 
 
 
—
 
Vested
 
 
—
 
 
 
—
 
 
 
  
 
 
 
  
 
 
 
—
 
Granted
 
 
2,119,500
 
 
 
15.33
 
 
 
  
 
 
 
  
 
 
 
2,119,500
 
Expired and cancelled
 
 
(67,500
) 
 
 
15.33
 
 
 
  
 
 
 
  
 
 
 
(67,500
) 
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
 
 
—
 
 
$
—
 
 
 
—
 
 
$
—
 
 
 
—
 
Employee Stock Option [Member]
  
Schedule of Share-based Compensation, Activity [Table Text Block]
Share options outstanding as of December 31, 2013 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
$5.83 – $6.14
 
 
112,500
 
 
 
2.8
 
 
$
6.03
 
 
 
112,500
 
 
$
6.03
 
 
 
2.8