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SELECTED QUARTERLY FINANCIAL DATA Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information
SELECTED QUARTERLY FINANCIAL DATA (unaudited)

 
 
For The Year Ended December 31, 2013
 
 
First
quarter
 
Second 
quarter
 
Third
quarter
 
Fourth 
quarter
Revenue
 
$
165,678

 
$
171,360

 
$
163,587

 
$
159,503

Gross margin
 
$
56,677

 
$
60,504

 
$
55,796

 
$
56,895

Operating income (loss)
 
$
(8,542
)
 
$
(5,424
)
 
$
(5,140
)
 
$
(7,653
)
Net income (loss)
 
$
(8,241
)
 
$
(5,811
)
 
$
(5,047
)
 
$
(11,296
)
Basic earnings (loss) per share
 
$
(0.25
)
 
$
(0.18
)
 
$
(0.15
)
 
$
(0.35
)
Diluted earnings (loss) per share
 
$
(0.25
)
 
$
(0.18
)
 
$
(0.15
)
 
$
(0.35
)
Basic weighted average shares outstanding (in thousands)
 
32,344

 
32,717

 
32,600

 
32,600

Diluted weighted average shares outstanding (in thousands)
 
32,344

 
32,717

 
32,600

 
32,600

Common stock equivalents and outstanding stock options excluded from the calculation of diluted earnings (loss) per share (in thousands)
 
1,725

 
1,972

 
2,191

 
1,914

 
 
 
 
 
 
 
 
 
 
 
For The Year Ended December 31, 2012
 
 
First
quarter
 
Second 
quarter
 
Third
quarter
 
Fourth 
quarter
Revenue
 
$
200,590

 
$
204,838

 
$
187,873

 
$
184,276

Gross margin
 
$
73,208

 
$
77,068

 
$
67,666

 
$
66,925

Operating income (loss)
 
$
(3,702
)
 
$
(3,167
)
 
$
(1,600
)
 
$
1,831

Net income (loss)
 
$
(3,221
)
 
$
394

 
$
(2,165
)
 
$
(343
)
Basic earnings (loss) per share
 
$
(0.10
)
 
$
0.01

 
$
(0.07
)
 
$
(0.01
)
Diluted earnings (loss) per share
 
$
(0.10
)
 
$
0.01

 
$
(0.07
)
 
$
(0.01
)
Basic weighted average shares outstanding (in thousands)
 
31,765

 
32,122

 
32,156

 
32,169

Diluted weighted average shares outstanding (in thousands)
 
31,765

 
32,486

 
32,156

 
32,169

Common stock equivalents and outstanding stock options excluded from the calculation of diluted earnings (loss) per share (in thousands)
 
2,793

 
1,939

 
2,654

 
2,368