|
EARNINGS PER SHARE (EPS) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
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Sep. 30, 2011
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|
| Numerator [Abstract] | ||||
| Net income per the Consolidated Statements of operations | $ 11,795 | $ 11,164 | $ 33,573 | $ 34,582 |
| Denominator [Abstract] | ||||
| Weighted Average Number of Shares Outstanding utilized in the calculation of basic EPS (in shares) | 34,408,801 | 33,831,618 | 34,212,431 | 33,666,202 |
| Common stock equivalents resulting from the dilutive effect of in-the-money outstanding stock options (in shares) | 89,016 | 49,705 | 75,348 | 117,206 |
| Weighted average number of shares outstanding utilized in the calculation of diluted EPS (in shares) | 34,497,817 | 33,881,323 | 34,287,779 | 33,783,408 |
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 1,330,792 | 2,746,738 | 1,323,076 | 1,245,159 |