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Share-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Compensation Expense | Pre-tax share-based compensation expense reported in the Company’s consolidated statements of operations was as follows:
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
| (in thousands)
Cost of sales | $ | 379 |  |  | $ | 488 |  |  | $ | 539 |
Selling, general and administrative expenses | 9,394 |  |  | 10,199 |  |  | 10,697 |
Total share-based compensation expense | $ | 9,773 |  |  | $ | 10,687 |  |  | $ | 11,236 |
Stock Option Activity | Stock option activity during the year ended December 31, 2017 was:
| Shares |  | Weighted Average Exercise Price |  | Weighted Average Contractual Life (Years) |  | Aggregate Intrinsic Value
| (in thousands, except exercise price and years)
Outstanding as of December 31, 2016 | 518 |  |  | $ | 16.90 |  |  | 3.99 |  | $ | 186 |
Granted | 200 |  |  | 6.98 |  |  |  |  |
Exercised | (16 | ) |  | 6.00 |  |  |  |  |
Forfeited or expired | (161 | ) |  | 25.52 |  |  |  |  |
Outstanding as of December 31, 2017 | 541 |  |  | $ | 11.00 |  |  | 5.37 |  | $ | 1,918 |
Exercisable at December 31, 2017 | 320 |  |  | $ | 13.28 |  |  | 2.78 |  | $ | 786 |
Vested and expected to vest at December 31, 2017 | 541 |  |  | $ | 11.00 |  |  | 5.37 |  | $ | 1,918 |
Schedule of Pricing Model Assumptions | During the years ended December 31, 2017 and 2015, stock options were valued using a Black Scholes option pricing model using the following assumptions. No stock options were granted during 2016.
| Year Ended December 31,
| 2017 |  | 2015
Expected volatility | 40.7% |  | 42.5%
Dividend yield | — |  | —
Risk-free interest rate | 1.76% |  | 1.50% - 1.72%
Expected life (in years) | 4.00 |  | 4.00
Schedule Of Restricted Stock Award And Restricted Stock Unit Activity | RSA and RSU activity during the year ended December 31, 2017 was:
| Restricted Stock Awards |  | Restricted Stock Units
| Shares |  | Weighted Average Grant Date Fair Value |  | Shares |  | Weighted Average Grant Date Fair Value
| (in thousands, except fair value data)
Unvested at December 31, 2016 | 11 |  |  | $ | 10.28 |  |  | 3,855 |  |  | $ | 10.31 |
Granted | 35 |  |  | 6.84 |  |  | 2,434 |  |  | 6.84 |
Vested | (29 | ) |  | 8.19 |  |  | (764 | ) |  | 10.88 |
Forfeited | — |  |  | N/A |  |  | (1,734 | ) |  | 9.60 |
Unvested at December 31, 2017 | 17 |  |  | $ | 6.84 |  |  | 3,791 |  |  | $ | 7.99 |

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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=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: 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=96867065&loc=d3e5070-113901 Reference 3: 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=96867065&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=96867065&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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