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QUARTERLY RESULTS (UNAUDITED) (Tables)
 12 Months Ended
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Results (Unaudited)
The following information has been derived from unaudited consolidated financial statements that, in the opinion of management, include all normal recurring adjustments necessary for a fair presentation of such information.
(In thousands, except per share data)
Quarter Ended
2014
 
2013
 
Dec. 31
 
Sept. 30
 
June 30
 
Mar. 31
 
Dec. 31
 
Sept. 30
 
June 30
 
Mar. 31
Net revenues
$
128,196

 
$
142,429

 
$
124,644

 
$
134,982

 
$
147,103

 
$
138,893

 
$
141,345

 
$
136,071

Cost of revenues
50,548

 
52,788

 
50,420

 
50,665

 
59,801

 
56,055

 
54,294

 
52,291

Amortization of intangible assets
—

 
—

 
—

 
50

 
158

 
158

 
501

 
651

Gross profit
77,648

 
89,641

 
74,224

 
84,267

 
87,144

 
82,680

 
86,550

 
83,129

Operating expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   Research and development
23,212

 
22,154

 
22,070

 
22,954

 
24,556

 
23,239

 
23,847

 
23,607

   Marketing and selling
34,527

 
31,410

 
34,297

 
32,815

 
34,566

 
31,512

 
33,903

 
33,909

   General and administrative
22,222

 
20,644

 
19,984

 
18,331

 
23,135

 
22,715

 
16,131

 
15,597

   Amortization of intangible assets
375

 
373

 
398

 
480

 
667

 
660

 
658

 
663

   Restructuring (recoveries) costs, net
—

 
—

 
(165
)
 
—

 
2,491

 
688

 
1,918

 
273

   Total operating expenses
80,336

 
74,581

 
76,584

 
74,580

 
85,415

 
78,814

 
76,457

 
74,049

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating (loss) income
(2,688
)
 
15,060

 
(2,360
)
 
9,687

 
1,729

 
3,866

 
10,093

 
9,080

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other (expense) income, net
(1,620
)
 
(455
)
 
(357
)
 
(351
)
 
192

 
(363
)
 
(247
)
 
(258
)
(Loss) income before income taxes
(4,308
)
 
14,605

 
(2,717
)
 
9,336

 
1,921

 
3,503

 
9,846

 
8,822

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Provision for income taxes
761

 
365

 
622

 
440

 
792

 
921

 
669

 
557

Net (loss) income
$
(5,069
)
 
$
14,240

 
$
(3,339
)
 
$
8,896

 
$
1,129

 
$
2,582

 
$
9,177

 
$
8,265

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(Loss) income per share – basic
$
(0.13
)
 
$
0.36

 
$
(0.09
)
 
$
0.23

 
$
0.03

 
$
0.07

 
$
0.24

 
$
0.21

(Loss) income per share – diluted
(0.13
)
 
0.36

 
(0.09
)
 
0.23

 
0.03

 
0.07

 
0.23

 
0.21

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding – basic
39,234

 
39,133

 
39,119

 
39,099

 
39,080

 
39,075

 
39,040

 
38,977

Weighted-average common shares outstanding – diluted
39,966

 
39,201

 
39,119

 
39,122

 
39,111

 
39,076

 
39,069

 
39,034