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STOCK-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary Of Employee Stock-Based Compensation Expense | Stock-based compensation expense - all related to employees and members of the Board of Directors - recognized under the authoritative guidance was as follows:
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
| (In thousands)
Selling, general and administrative | $ | 15,829 |  |  | $ | 14,461 |  |  | $ | 13,940 |
Research and development | 1,048 |  |  | 714 |  |  | 463 |
Cost of goods sold | 433 |  |  | 275 |  |  | 151 |
Total stock-based compensation expense | 17,310 |  |  | 15,450 |  |  | 14,554 |
Total estimated tax benefit related to stock-based compensation expense | 10,569 |  |  | 5,792 |  |  | 5,350 |
Net effect on net income | $ | 6,741 |  |  | $ | 9,658 |  |  | $ | 9,204 |
Summary Of Weighted-Average Assumptions | The following weighted-average assumptions were used in the calculation of fair value:
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Dividend yield | 0% |  | 0% |  | 0%
Expected volatility | 29% |  | 29% |  | 29%
Risk free interest rate | 1.94% |  | 1.96% |  | 2.41%
Expected life of option from grant date | 8 years |  | 8 years |  | 8 years
Summary Of Stock Option Activity | The following table summarizes the Company’s stock option activity.
|  |  | Weighted Average Exercise Price |  | Weighted Average Contractual Term in Years |  | Aggregate Intrinsic Value
| Shares |  |  |
Stock Options | (In thousands) |  |  |  |  |  | (In thousands)
Outstanding at January 1, 2016 | 2,386 |  |  | $ | 18.55 |  |  |  |  |
Granted | 276 |  |  | 33.69 |  |  |  |  |
Exercised | (566 | ) |  | 17.85 |  |  |  |  |
Forfeited or Expired | (13 | ) |  | 32.59 |  |  |  |  |
Outstanding at December 31, 2016 | 2,083 |  |  | $ | 20.65 |  |  | 3.40 |  | $ | 46,340 |
Vested or expected to vest at December 31, 2016 | 2,083 |  |  | $ | 20.65 |  |  | 3.40 |  | $ | 46,340 |
Exercisable at December 31, 2016 | 1,658 |  |  | $ | 18.00 |  |  | 2.51 |  | $ | 41,292 |
Summary Of Restricted Stock, Performance Stock, and Contract Stock | The following table summarizes the Company’s awards of restricted stock, performance stock and contract stock for the year ended December 31, 2016.
|  |  |  |  | Performance Stock and Contract Stock Awards
| Restricted Stock Awards |
| Shares |  | Weighted Average Grant Date Fair Value Per Share |  | Shares |  | Weighted Average Grant Date Fair Value Per Share
| (In thousands) |  |  |  | (In thousands) |  |
Unvested, January 1, 2016 | 588 |  |  | $ | 24.10 |  |  | 332 |  |  | $ | 16.65 |
Granted | 289 |  |  | 33.71 |  |  | 203 |  |  | 32.70 |
Adjustments for performance achievement related to award target | — |  |  | — |  |  | 25 |  |  | 31.07 |
Cancellations | (52 | ) |  | 27.83 |  |  | (12 | ) |  | 30.52 |
Released | (313 | ) |  | 22.09 |  |  | (15 | ) |  | 25.03 |
Vested but not released | — |  |  | — |  |  | (188 | ) |  | 25.23 |
Unvested, December 31, 2016 | 512 |  |  | $ | 28.49 |  |  | 345 |  |  | $ | 21.62 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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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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