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Summary of Stock Option Transactions Relating to Non-Qualified Stock Option Plans (Detail) (Nonvested Stock Option, USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013
Number of Shares |
No. of options, Outstanding at December 31, 2012 | 4,047
No. of options, Granted |
Special dividend adjustment | 519
No. of options, Exercised | (1,830)
No. of options, Cancelled | (134)
No. of options, Outstanding at December 31, 2013 | 2,602
No. of options, Exercisable at December 31, 2013 | 1,923
Weighted-Average Exercise Price per Share |
Weighted-Average Exercise Price of options, Outstanding at December 31, 2012 | $ 20.61
Weighted-Average Exercise Price of options, Granted |
Weighted-Average Exercise Price of options, Exercised | $ 16.48
Weighted-Average Exercise Price of options, Cancelled | $ 22.33
Weighted-Average Exercise Price of options, Outstanding at December 31, 2013 | $ 19.31
Weighted-Average Exercise Price of options, Exercisable at December 31, 2013 | $ 18.47
Weighted Average Remaining Contractual Term (in years) |
Outstanding at December 31, 2013 | 5 years 9 months 18 days
Exercisable at December 31, 2013 | 5 years 1 month 6 days
Aggregate Intrinsic Value |
Outstanding at December 31, 2013 | $ 33,197
Exercisable at December 31, 2013 | $ 26,141
Special Dividend |
Weighted-Average Exercise Price per Share |
Weighted-Average Exercise Price of options, Special dividend adjustment |

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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to 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)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Net number of share options (or share units) granted during the period. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance 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)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date. + 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 (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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