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Overview and significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Schedule of information about the operations in different geographical areas | Information about the operations in different geographic areas:
|  | Year Ended December 31,
In thousands |  | 2018 |  | 2017
Revenue (1) |  |  |  |  |  |
United States |  | $ | 243,298 |  |  | $ | 330,944 |
Other countries |  | 41,330 |  |  | 52,962 |
Total revenue |  | $ | 284,628 |  |  | $ | 383,906 |
|  | December 31,
In thousands |  | 2018 |  | 2017
Property, plant and equipment (2) |  |  |  |  |  |
United States |  | $ | 11,647 |  |  | $ | 18,789 |
Other countries |  | 1,945 |  |  | 2,998 |
Total property, plant and equipment |  | $ | 13,592 |  |  | $ | 21,787 |
(1) | Geographic revenues are based on the location of the service being performed.
(2) | Property, plant and equipment are based on physical location.
Schedule of changes in allowance for doubtful accounts | The changes in the allowance for doubtful accounts consisted of the following:
|  | Year Ended December 31,
In thousands |  | 2018 |  | 2017
Balance at beginning of year |  | $ | 697 |  |  | $ | 1,028 |
Net charges to expense |  | 131 |  |  | 192 |
Amounts recovered against the allowance |  | (398 | ) |  | (523 | )
Balance at end of year |  | $ | 430 |  |  | $ | 697 |
Schedule of estimated useful lives of property, plant and equipment | The general ranges of estimated useful lives are:
Buildings and improvements | 3 | to | 40 years
Software | 2 | to | 10 years
Equipment and furniture | 3 | to | 20 years
Schedule of capital lease assets | Capital lease assets are included in property, plant and equipment. Capital lease assets consisted of:
|  | December 31,
In thousands |  | 2018 |  | 2017
Equipment and furniture |  | $ | 2,658 |  |  | $ | 1,774 |
Less accumulated depreciation |  | (920 | ) |  | (687 | )
Net book value |  | $ | 1,738 |  |  | $ | 1,087 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Tabular disclosure of long-lived, depreciable assets that are subject to a lease meeting the criteria for capitalization and are used in the normal conduct of business to produce goods and services. Examples may include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 + Details
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