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Operations and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2011
Operations and Summary of Significant Accounting Policies |
Schedule of estimated useful lives over which depreciation of software, machinery and equipment is provided for using accelerated methods |
Software |  | 3 to 5 years
Machinery and equipment |  | 3 to 10 years
Reconciliation of basic earnings (loss) per share ("EPS") to diluted EPS |
(in thousands, except) per-share amounts)
|  | Year Ended December 31, |
|  | 2011 |  | 2010 |  | 2009 |
Earnings from continuing operations, net of tax |  | $ | 50,900 |  | $ | 44,798 |  | $ | 14,121 |
Loss from discontinued operations, net of tax |  | — |  | (16,212 | ) | (1,904 | )
Net income available to common stockholders |  | $ | 50,900 |  | $ | 28,586 |  | $ | 12,217 |
Basic weighted average shares outstanding |  | 48,974 |  | 49,498 |  | 49,135 |
Dilutive effect of potential common stock equivalents — stock options |  | 49 |  | 114 |  | 121 |
Diluted weighted average shares outstanding |  | 49,023 |  | 49,612 |  | 49,256 |
Net earnings (loss) per share — basic: |  |  |  |  |  |  |
Continuing operations |  | $ | 1.04 |  | $ | 0.91 |  | $ | 0.29 |
Discontinued operations |  | — |  | (0.33 | ) | (0.04 | )
Net income |  | 1.04 |  | 0.58 |  | 0.25 |
Net earnings (loss) per share — diluted: |  |  |  |  |  |  |
Continuing operations |  | $ | 1.04 |  | $ | 0.90 |  | $ | 0.29 |
Discontinued operations |  | — |  | (0.33 | ) | (0.04 | )
Net income |  | 1.04 |  | 0.58 |  | 0.25 |
Potentially dilutive securities excluded from earnings per diluted share because their effect is anti-dilutive |  | 1,363 |  | 1,018 |  | 1,037 |
Stock-based compensation activity, including both continuing and discontinued operations of the entity |
(in thousands)
|  | Years Ended December 31, |
|  | 2011 |  | 2010 |  | 2009 |
Stock-based compensation expense recognized in operating expenses |  | $ | 6,133 |  | $ | 3,338 |  | $ | 1,746 |
Tax benefit of stock-based compensation expense in provision for income taxes |  | 2,261 |  | 1,212 |  | 544 |
Stock-based compensation expense, net of tax |  | $ | 3,872 |  | $ | 2,126 |  | $ | 1,202 |
Fair value of shares vested |  | $ | 6,194 |  | $ | 3,577 |  | $ | 1,690 |
Proceeds to the Company from the exercise of stock-based compensation |  | $ | 214 |  | $ | 17,948 |  | $ | 7,627 |
Tax benefit from exercise of stock-based compensation, including (shortfall) tax benefits |  | $ | (1,554 | ) | $ | (2,430 | ) | $ | (445 | )
(in thousands)
|  | At December 31, |
|  | 2011 |  | 2010 |  | 2009 |
Stock-based compensation cost capitalized in inventory |  | $ | 345 |  | $ | 284 |  | $ | 45 |
Schedule of changes in the carrying amount of goodwill, by segment |
(in thousands)
|  |  |  |  |  |  |  | Venting |  |  |
|  |  |  |  |  |  |  | Products |  |  |
|  | North |  |  |  | Asia |  | Discontinued |  |  |
|  | America |  | Europe |  | Pacific |  | Operations |  | Total |
Balance as of January 1, 2010: |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 52,241 |  | $ | 36,864 |  | $ | 1,716 |  | $ | 4,435 |  | $ | 95,256 |
Accumulated impairment losses |  | (10,666 | ) | (2,964 | ) | — |  | — |  | (13,630 | )
|  | 41,575 |  | 33,900 |  | 1,716 |  | 4,435 |  | 81,626 |
Goodwill acquired |  | — |  | 1,100 |  | — |  | — |  | 1,100 |
Foreign exchange |  | 186 |  | (2,341 | ) | 225 |  | — |  | (1,930 | )
Impairment |  |  |  | (6,292 | ) | — |  | (4,435 | ) | (10,727 | )
Balance as of December 31, 2010: |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 52,427 |  | 35,623 |  | 1,941 |  | 4,435 |  | 94,426 |
Accumulated impairment losses |  | (10,666 | ) | (9,256 | ) | — |  | (4,435 | ) | (24,357 | )
|  | 41,761 |  | 26,367 |  | 1,941 |  | — |  | 70,069 |
Goodwill acquired |  | 32,230 |  | — |  | — |  | — |  | 32,230 |
Foreign exchange |  | (90 | ) | (750 | ) | 7 |  | — |  | (833 | )
Impairment |  | — |  | (1,282 | ) | — |  | — |  | (1,282 | )
Reclassifications |  | — |  | (335 | ) | — |  | — |  | (335 | )
Balance as of December 31, 2011: |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 84,567 |  | 34,538 |  | 1,948 |  | 4,435 |  | 125,488 |
Accumulated impairment losses |  | (10,666 | ) | (10,538 | ) | — |  | (4,435 | ) | (25,639 | )
|  | $ | 73,901 |  | $ | 24,000 |  | $ | 1,948 |  | $ | — |  | $ | 99,849 |
Schedule of changes in the carrying amounts of intangible assets subject to amortization, including both continuing and discontinued operations |
(in thousands)
|  | Gross |  |  |  | Net |
|  | Carrying |  | Accumulated |  | Carrying |
Patents |  | Amount |  | Amortization |  | Amount |
Balance at January 1, 2010 |  | $ | 6,939 |  | $ | (3,758 | ) | $ | 3,181 |
Amortization |  | — |  | (626 | ) | (626 | )
Foreign exchange |  | (18 | ) | — |  | (18 | )
Balance at December 31, 2010 |  | 6,921 |  | (4,384 | ) | 2,537 |
Amortization |  | — |  | (620 | ) | (620 | )
Foreign exchange |  | (3 | ) | — |  | (3 | )
Removal of fully amortized asset |  | (237 | ) | 237 |  | — |
Balance at December 31, 2011 |  | $ | 6,681 |  | $ | (4,767 | ) | $ | 1,914 |
|  | Gross |  |  |  | Net |
|  | Carrying |  | Accumulated |  | Carrying |
Unpatented Technology |  | Amount |  | Amortization |  | Amount |
Balance at January 1, 2010 |  | $ | 2,962 |  | $ | (481 | ) | $ | 2,481 |
Amortization |  | — |  | (398 | ) | (398 | )
Foreign exchange |  | (114 | ) | — |  | (114 | )
Balance at December 31, 2010 |  | 2,848 |  | (879 | ) | 1,969 |
Amortization |  | — |  | (516 | ) | (516 | )
Foreign exchange |  | (66 | ) | — |  | (66 | )
Reclassifications |  | 1,347 |  | — |  | 1,347 |
Balance at December 31, 2011 |  | $ | 4,129 |  | $ | (1,395 | ) | $ | 2,734 |
|  | Gross |  |  |  | Net |
Non-Compete Agreements, |  | Carrying |  | Accumulated |  | Carrying |
Tradmarks and Other |  | Amount |  | Amortization |  | Amount |
Balance at January 1, 2010 |  | $ | 8,095 |  | $ | (3,223 | ) | $ | 4,872 |
Acquisition |  | 1,633 |  | — |  | 1,633 |
Amortization |  | — |  | (1,358 | ) | (1,358 | )
Impairment |  | — |  | (166 | ) | (166 | )
Foreign exchange |  | (164 | ) | — |  | (164 | )
Removal of fully amortized asset |  | (436 | ) | 436 |  | — |
Balance at December 31, 2010 |  | 9,128 |  | (4,311 | ) | 4,817 |
Acquisition |  | 9,026 |  | — |  | 9,026 |
Amortization |  | — |  | (1,297 | ) | (1,297 | )
Foreign exchange |  | (19 | ) | — |  | (19 | )
Reclassifications |  | (1,612 | ) | — |  | (1,612 | )
Removal of fully amortized asset |  | (247 | ) | 247 |  | — |
Balance at December 31, 2011 |  | $ | 16,276 |  | $ | (5,361 | ) | $ | 10,915 |
|  | Gross |  |  |  | Net |
|  | Carrying |  | Accumulated |  | Carrying |
Customer Relationships |  | Amount |  | Amortization |  | Amount |
Balance at January 1, 2010 |  | $ | 23,282 |  | $ | (4,964 | ) | $ | 18,318 |
Amortization |  | — |  | (2,190 | ) | (2,190 | )
Impairment |  | — |  | (1,478 | ) | (1,478 | )
Foreign exchange |  | (507 | ) | — |  | (507 | )
Removal of fully amortized asset |  | (3,018 | ) | 3,018 |  | — |
Balance at December 31, 2010 |  | 19,757 |  | (5,614 | ) | 14,143 |
Amortization |  | — |  | (1,893 | ) | (1,893 | )
Foreign exchange |  | (112 | ) | — |  | (112 | )
Reclassifications |  | 155 |  | — |  | 155 |
Removal of fully amortized asset |  | (860 | ) | 860 |  | — |
Balance at December 31, 2011 |  | $ | 18,940 |  | $ | (6,647 | ) | $ | 12,293 |
Schedule of changes in the carrying amounts of finite-lived intangible assets, net, by segment |
|  | At December 31, 2010 |
|  | Gross |  |  |  | Net |
|  | Carrying |  | Accumulated |  | Carrying |
Total Intangible Assets |  | Amount |  | Amortization |  | Amount |
North America |  | $ | 24,022 |  | $ | (10,792 | ) | $ | 13,230 |
Europe |  | 14,632 |  | (4,396 | ) | 10,236 |
Total |  | $ | 38,654 |  | $ | (15,188 | ) | $ | 23,466 |
|  | At December 31, 2011 |
|  | Gross |  |  |  | Net |
|  | Carrying |  | Accumulated |  | Carrying |
Total Intangible Assets |  | Amount |  | Amortization |  | Amount |
North America |  | $ | 32,912 |  | $ | (13,288 | ) | $ | 19,624 |
Europe |  | 13,114 |  | (4,882 | ) | 8,232 |
Total |  | $ | 46,026 |  | $ | (18,170 | ) | $ | 27,856 |
Estimated future amortization of intangible assets |
(in thousands)
2012 |  | $ | 5,102 |
2013 |  | 4,535 |
2014 |  | 4,322 |
2015 |  | 3,560 |
2016 |  | 3,425 |
Thereafter |  | 6,912 |
|  | $ | 27,856 |

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