XML 99 R41.htm IDEA: XBRL DOCUMENT v2.4.0.6
Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2012
Quarterly Financial Data [Abstract]  
Schedule of quarterly financial data
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
 
(in thousands, except per share data)
2012
 
 
 
 
 
 
 
 
 
Revenue
$
79,195

 
$
78,303

 
$
78,628

 
$
76,702

 
$
312,828

Gross margin
33,451

 
33,025

 
33,843

 
31,300

 
131,619

Net income
3,606

 
13,178

 
9,806

 
23,201

 
49,791

Earnings per share (1):
 
 
 
 
 
 
 
 
 
Basic
$
0.08

 
$
0.27

 
$
0.20

 
$
0.48

 
$
1.03

Diluted
$
0.07

 
$
0.25

 
$
0.19

 
$
0.44

 
$
0.97

2011
 
 
 
 
 
 
 
 
 
Revenue
$
52,905

 
$
55,918

 
$
75,058

 
$
74,904

 
$
258,785

Gross margin
21,145

 
22,244

 
30,717

 
31,714

 
105,820

Net income
10,374

 
2,126

 
17,917

 
991

 
31,408

Earnings per share (1):
 
 
 
 
 
 
 
 
 
Basic
$
0.15

 
$
0.05

 
$
0.38

 
$
0.02

 
$
0.60

Diluted
$
0.13

 
$
0.04

 
$
0.35

 
$
0.02

 
$
0.56

(1)    The sum of the quarterly earnings per share applicable to common stockholders (basic and diluted) may not agree to the earnings per share for the year due to the timing of common stock issuances.