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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Goodwill and Indefinite Life Intangible Assets [Abstract] |  |  |
Goodwill | $ 114,954 | $ 112,446 |
Trademarks and trade names | 24,599 | 24,599 |
Other indefinite lived intangibles | 3,763 | 0 |
Total goodwill and indefinite lived intangibles | 143,316 | 137,045 |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | 129,391 | 128,304 |
Accumulated amortization | $ 94,200 | 85,894 |
Weighted average amortization period | 15 years |  |
Amortization expense | $ 8,400 | 8,600 | $ 8,400
Writeoff of fully amortized intangible assets |  | 12,000 |
Annual Estimated Future Amortization Expense [Abstract] |  |  |
2017 | 8,460 |  |
2018 | 7,650 |  |
2019 | 7,480 |  |
2020 | 4,160 |  |
2021 | 2,730 |  |
Impairment Charges [Abstract] |  |  |
Goodwill impairment charge | 0 | 0 | 0
Indefinite life intangible assets impairment charge | 0 | 0 | $ 0
Scanner Technology [Member] |  |  |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | 46,482 | 46,482 |
Accumulated amortization | $ 36,624 | 33,590 |
Weighted average amortization period | 18 years |  |
Developed Technology [Member] |  |  |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | $ 22,500 | 22,500 |
Accumulated amortization | $ 18,383 | 17,558 |
Weighted average amortization period | 20 years |  |
Distribution Network [Member] |  |  |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | $ 11,598 | 11,598 |
Accumulated amortization | $ 11,598 | 11,096 |
Weighted average amortization period | 15 years |  |
Trademarks [Member] |  |  |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | $ 2,592 | 2,409 |
Accumulated amortization | $ 1,011 | 879 |
Weighted average amortization period | 15 years |  |
Other [Member] |  |  |
Finite Life Intangible Assets [Abstract] |  |  |
Gross carrying amount | $ 46,219 | 45,315 |
Accumulated amortization | $ 26,584 | $ 22,771 |
Weighted average amortization period | 8 years |  |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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