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STOCK-BASED COMPENSATION (Tables) | 6 Months Ended
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Jun. 30, 2016
STOCK-BASED COMPENSATION |
Schedule of weighted-average assumptions used to estimate the fair value of options granted |
|  | Three-Months Ended June 30, |  |  | Six-Months Ended June 30,
|  | 2016 |  | 2015 |  |  | 2016 |  | 2015
Dividend yield |  | 0.0% |  |  | 0.0% |  |  |  | 0.0% |  |  | 0.0% |
Expected volatility |  | 36.2% |  |  | 37.0% |  |  |  | 36.2% |  |  | 37.1% |
Risk-free interest rate |  | 1.3% |  |  | 1.5% |  |  |  | 1.4% |  |  | 1.6% |
Expected term |  | 6.4 years |  |  | 5.8 years |  |  |  | 6.3 years |  |  | 5.8 years |
Summary of Company's activities with respect to its stock option plans |
Options |  | Number of Shares (In thousands) |  | Weighted- Average Exercise Price Per Share |  | Weighted- Average Remaining Contractual Term (In years) |  | Aggregate Intrinsic Value
Outstanding at January 1, 2016 |  | 6,590 |  | $ | 50.85 |  | 5.6 |  | $ | 646,497
Granted 01/01/16 - 03/31/16 |  | 961 |  | $ | 132.06 |  |  |  |
Granted 04/01/16 - 06/30/16 |  | 219 |  | $ | 138.53 |  |  |  |
Exercised |  | (210) |  | $ | 38.89 |  |  |  |
Cancelled or forfeited |  | (81) |  | $ | 94.97 |  |  |  |
Outstanding at June 30, 2016 |  | 7,479 |  | $ | 63.72 |  | 5.8 |  | $ | 725,436
Vested and expected to vest in the future at June 30, 2016 |  | 7,031 |  | $ | 60.23 |  | 5.6 |  | $ | 706,495
Exercisable at June 30, 2016 |  | 4,350 |  | $ | 31.24 |  | 3.9 |  | $ | 563,212
Summary of Company's activities with respect to non-vested restricted stock awards and non-vested restricted stock units |
|  | Number of Shares (in thousands) |  | Weighted Average Grant-Date Fair Value |
Non-vested at January 1, 2016 |  | 178 |  | $ | 99.58 |
Granted 01/01/16- 03/31/16 |  | 82 |  | $ | 131.96 |
Granted 04/01/16- 06/30/16 |  | 12 |  | $ | 148.94 |
Vested |  | (68) |  | $ | 104.32 |
Forfeited/cancelled |  | (1) |  | $ | 57.45 |
Non-vested at June 30, 2016 |  | 203 |  | $ | 114.26 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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