|
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, NET INCOME (LOSS) PER SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| Numerator: [Abstract] |
|
|
| Net income (loss) |
$ (6,127) |
$ 9,740 |
| Denominator: [Abstract] |
|
|
| Denominator for basic net income (loss) per share - weighted-average outstanding shares (in shares) |
31,831,000 |
28,273,000 |
| Effect of dilutive securities: [Abstract] |
|
|
| Stock options and restricted stock |
0 |
567,000 |
| Denominator for diluted net income (loss) per share - weighted-average outstanding shares (in shares) |
31,831,000 |
28,840,000 |
| Net income (loss) per share - basic (in dollars per share) |
$ (0.19) |
$ 0.34 |
| Net income (loss) per share - diluted (in dollars per share) |
$ (0.19) |
$ 0.34 |
| Employee Stock Option [Member] |
|
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |
|
|
| Antidilutive securities excluded from computation of earnings per share |
|
88,000 |
| Restricted Stock [Member] |
|
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |
|
|
| Antidilutive securities excluded from computation of earnings per share |
55,000 |
25,000 |
| Restricted Stock Units (RSUs) [Member] |
|
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |
|
|
| Antidilutive securities excluded from computation of earnings per share |
1,000 |
1,000 |