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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract] |  |  |
Accumulated Other Comprehensive Loss, Foreign Currency Translation Adjustment, Net of Tax | $ 31,831 | $ 15,778 | $ 44,444
Restricted Cash | $ 525 | 653 |
Number of shares authorized to be repurchased under our stock repurchase programs | 1,392,892 |  |
Machine warranty, range minimum (in years) | 1 year |  |
Machine warranty, range maximum (in years) | 4 years |  |
Advertising Costs | $ 8,767 | $ 8,228 | $ 7,269
Buildings and improvements |  |  |
Property, Plant and Equipment |  |  |
Property, Plant and Equipment, Useful life, Average | 30 years |  |
Property, Plant and Equipment, Other Types | Minimum |  |  |
Property, Plant and Equipment |  |  |
Property, Plant and Equipment, Useful life, Average | 3 years |  |
Property, Plant and Equipment, Other Types | Maximum |  |  |
Property, Plant and Equipment |  |  |
Property, Plant and Equipment, Useful life, Average | 15 years |  |

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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109240241&loc=d3e32022-110900 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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