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Stock Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Weighted Average Assumptions Relevant to Determining the Fair Value at the Dates of Grant | The weighted average assumptions relevant to determining the fair value at the dates of grant are below:
|  | 2013 |  |  | 2012 |  |  | 2011 |
Term |  |  | 6 years |  |  |  | 6 years |  |  |  | 6 years |
Risk free interest rate |  |  | 0.87 | % |  |  | 1.16 | % |  |  | 1.72 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | % |  |  | 0.00 | %
Expected volatility |  |  | 57.00 | % |  |  | 50.51 | % |  |  | 42.10 | %
Expected forfeiture rate |  |  | 3.00 | % |  |  | 3.00 | % |  |  | 5.00 | %
Reconciliation of Option Activity | The following table provides a reconciliation of option activity for the year ended December 31, 2013:
Options |  | Shares (000’s) |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value ($000) |
Outstanding at January 1, 2013 |  |  | 1,384 |  |  | $ | 9.94 |  |  |  |  |  |  |  |  |
Granted |  |  | 354 |  |  | $ | 9.81 |  |  |  |  |  |  |  |  |
Exercised |  |  | (496 | ) |  | $ | 8.10 |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (9 | ) |  | $ | 9.36 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2013 |  |  | 1,233 |  |  | $ | 10.65 |  |  |  | 6.5 |  |  | $ | 11,762 | (1)
Exercisable at December 31, 2013 |  |  | 687 |  |  | $ | 11.22 |  |  |  | 4.6 |  |  | $ | 6,168 | (1)
(1) | The intrinsic value is the amount by which the market price of our stock was greater than the exercise price of any individual option grant at December 31, 2013.

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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 employee stock purchase plans, including, but not limited to: (a) expected term, (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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