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STOCK-BASED COMPENSATION - Stock Option Activities (Details) - 2007 Incentive Plan - Stock Options $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) $ / shares shares
Number of shares |
Options outstanding, balance at the beginning of the period (in shares) | shares | 2,066
Options granted (in shares) | shares | 588
Options exercised (in shares) | shares | (601)
Options canceled (in shares) | shares | (83)
Options outstanding, balance at the end of the period (in shares) | shares | 1,970
Weighted Average Exercise Price |
Options outstanding, balance at the beginning of the period (in dollars per share) | $ / shares | $ 50.62
Options granted (in dollars per share) | $ / shares | 74.13
Options exercised (in dollars per share) | $ / shares | 38.52
Options canceled (in dollars per share) | $ / shares | 62.66
Options outstanding, balance at the end of the period (in dollars per share) | $ / shares | $ 60.82
Other Disclosures |
Options outstanding weighted average remaining contractual life | 3 years 5 months
Options outstanding, aggregate intrinsic value | $ | $ 30,638
Options exercisable (in shares) | shares | 746
Options exercisable (in dollars per share) | $ / shares | $ 48.34
Options exercisable, weighted average remaining contractual life | 2 years 7 months
Options exercisable, aggregate intrinsic value | $ | $ 20,817
Options expected to vest (in shares) | shares | 1,202
Options expected to vest (in dollars per share) | $ / shares | $ 68.40
Options expected to vest, weighted average remaining contractual life | 3 years 9 months
Options expected to vest, aggregate intrinsic value | $ | $ 9,690

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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