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Share-based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2012
Share-Based Compensation Plans [Abstract] |
Summary of share-based compensation expense | The following summarizes share-based compensation expense recorded:
|  | Year ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
|  | (in thousands) |
Cost of sales |  | $ | 432 |  |  | $ | 143 |  |  | $ | 49 |
Selling, general and administrative expenses |  |  | 2,616 |  |  |  | 1,318 |  |  |  | 748 |
Total |  | $ | 3,048 |  |  | $ | 1,461 |  |  | $ | 797 |
Schedule of Share-Based Compensation, Stock Options, Activity | A summary of status of the Company’s stock options as of December 31, 2012 and changes during the three years then ended is presented below:
|  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life |  |  | Aggregate Intrinsic Value |
|  |  |  |  |  |  |  | (in years) |  |  | (in thousands) |
Balance, December 31, 2009 |  |  | 213,103 |  |  | $ | 15.26 |  |  |  |  |  |  |  |  |
Options granted |  |  | 24,000 |  |  |  | 24.15 |  |  |  |  |  |  |  |  |
Options exercised or exchanged |  |  | (87,671 | ) |  |  | 13.63 |  |  |  |  |  |  |  |  |
Options cancelled |  |  | (4,223 | ) |  |  | 17.90 |  |  |  |  |  |  |  |  |
Balance, December 31, 2010 |  |  | 145,209 |  |  |  | 17.64 |  |  |  |  |  |  |  |  |
Options granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Options exercised or exchanged |  |  | (73,612 | ) |  |  | 14.12 |  |  |  |  |  |  |  |  |
Options cancelled |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Balance, December 31, 2011 |  |  | 71,597 |  |  |  | 21.26 |  |  |  |  |  |  |  |  |
Options granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Options exercised or exchanged |  |  | (24,597 | ) |  |  | 17.58 |  |  |  |  |  |  |  |  |
Options cancelled |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Balance, December 31, 2012 |  |  | 47,000 |  |  |  | 23.19 |  |  |  |  |  |  |  |  |
Exercisable and Outstanding, December 31, 2012 |  |  | 47,000 |  |  |  | 23.19 |  |  |  | 4.86 |  |  | $ | 122 |
Summary of information about stock options outstanding | The following table summarizes information about stock options outstanding at December 31, 2012:
Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices Per Share |  | Number of Options |  |  | Weighted Average Remaining Contractual Life (years) |  |  | Weighted Average Exercise Price Per Share |  |  | Number of Options |  |  | Weighted Average Exercise Price Per Share |
$10.31 |  |  | 7,000 |  |  |  | 0.36 |  |  | $ | 10.31 |  |  |  | 7,000 |  |  | $ | 10.31 |
$14.00 |  |  | 2,000 |  |  |  | 1.36 |  |  |  | 14.00 |  |  |  | 2,000 |  |  |  | 14.00 |
$22.07 - $24.15 |  |  | 28,000 |  |  |  | 6.55 |  |  |  | 23.85 |  |  |  | 28,000 |  |  |  | 23.85 |
$28.31 |  |  | 4,000 |  |  |  | 3.36 |  |  |  | 28.31 |  |  |  | 4,000 |  |  |  | 28.31 |
$34.77 |  |  | 6,000 |  |  |  | 4.41 |  |  |  | 34.77 |  |  |  | 6,000 |  |  |  | 34.77 |
|  |  | 47,000 |  |  |  | 4.86 |  |  |  | 23.19 |  |  |  | 47,000 |  |  |  | 23.19 |
Summary of transactions and other information related to Restricted Stock Units |
Year Ended December 31, 2010 |  |  |
Risk-free interest rate |  |  | 3.74 | %
Expected dividend yield |  |  | 0 | %
Expected volatility |  |  | 51.19 | %
Expected lives (in years) |  |  | 9.25 |
Summary of the status of the Company's restricted stock units and performance awards | A summary of status of the Company’s RSUs and PSAs as of December 31, 2012 and changes during the three years then ended is presented below:
|  | Number of RSUs and PSAs |  |  | Weighted Average Grant Date Fair Value |
Unvested RSUs and PSAs at December 31, 2009 |  |  | 127,487 |  |  | $ | 41.66 |
Unvested RSUs and PSAs cancelled |  |  | (54,986 | ) |  |  | 44.70 |
Unvested RSUs and PSAs vested |  |  | (16,658 | ) |  |  | 47.27 |
Unvested RSUs and PSAs at December 31, 2010 |  |  | 55,843 |  |  |  | 37.00 |
RSUs and PSAs granted |  |  | 174,891 |  |  |  | 23.32 |
Unvested RSUs and PSAs cancelled |  |  | (20,997 | ) |  |  | 47.46 |
Unvested RSUs and PSAs vested |  |  | (15,756 | ) |  |  | 26.27 |
Unvested RSUs and PSAs at December 31, 2011 |  |  | 193,981 |  |  |  | 24.41 |
RSUs and PSAs granted |  |  | 115,306 |  |  |  | 29.06 |
Unvested RSUs and PSAs cancelled |  |  | (39,306 | ) |  |  | 28.44 |
Unvested RSUs and PSAs vested |  |  | (26,840 | ) |  |  | 23.13 |
Unvested RSUs and PSAs at December 31, 2012 |  |  | 243,141 |  |  | $ | 26.11 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: 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 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 + 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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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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