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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table presents the weighted-average number of common shares outstanding used in the calculation of basic and diluted income per share:
 
 
Three Months Ended
March 31,
 
 
2014
 
2013
Numerator (in thousands):
 
 
 
 
Basic
 
 
 
 
Net income (loss)
 
$
(24,421
)
 
$
5,113

Undistributed earnings allocated to participating securities
 
—

 
(140
)
Total dividends declared / paid
 
(6,255
)
 
—

Dividends attributable to common stockholders
 
6,048

 
—

Net income (loss) attributable to common stockholders – basic
 
$
(24,628
)
 
$
4,973

 
 
 
 
 
Diluted
 
 
 
 
Net income (loss)
 
$
(24,421
)
 
$
5,113

Undistributed earnings allocated to participating securities
 
—

 
(139
)
Total dividends declared / paid
 
(6,255
)
 
—

Dividends attributable to common stockholders
 
6,048

 
—

Net income (loss) attributable to common stockholders – diluted
 
$
(24,628
)
 
$
4,974

 
 
 
 
 
Denominator:
 
 
 
 
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders – basic
 
48,329,375

 
47,859,774

Effect of potentially dilutive securities:
 
 
 
 
Common stock options and restricted stock units
 
—

 
244,468

Weighted-average shares used in computing net income (loss) per share attributable to common stockholders – diluted
 
48,329,375

 
48,104,242

 
 
 
 
 
Basic net income (loss) per common share
 
$
(0.51
)
 
$
0.10

Diluted net income (loss) per common share
 
$
(0.51
)
 
$
0.10
Impact of the Revision to the Comparable Prior Period Earnings (Loss) Per Share Calculations Using the Two-Class Method [Table Text Block]
The impact of the revision to the comparable prior period earnings (loss) per share calculations using the two-class method were as follows:
 
 
Three Months Ended
March 31,
 
 
2013
Numerator (in thousands):
 
 
Net income attributable to common stockholders – basic and diluted - As Reported
 
$
5,113

Net income attributable to common stockholders – basic - As Adjusted
 
$
4,973

Net income attributable to common stockholders – diluted - As Adjusted
 
$
4,974

 
 
 
Denominator:
 
 
Weighted-average shares used in computing net income per share attributable to common stockholders – basic - As Reported
 
47,859,774

Weighted-average shares used in computing net income per share attributable to common stockholders – basic - As Adjusted
 
47,859,774

Weighted-average shares used in computing net income per share attributable to common stockholders – diluted - As Reported
 
48,354,444

Weighted-average shares used in computing net income per share attributable to common stockholders – diluted - As Adjusted
 
48,104,242

 
 
 
Basic net income per common share - As Reported
 
$
0.11

Basic net income per common share - As Adjusted
 
$
0.10

Diluted net income per common share - As Reported
 
$
0.11

Diluted net income per common share - As Adjusted
 
$
0.10