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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2017
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment, net consist of the following (in millions):
| December 31,
| 2017 |  | 2016
Land improvements | $ | 0.8 |  |  | $ | 0.8 |
Furniture and fixtures, office, computer and other equipment and software | 48.8 |  |  | 47.1 |
Leasehold improvements | 16.8 |  |  | 14.6 |
| 66.4 |  |  | 62.5 |
Less accumulated depreciation and amortization | 51.3 |  |  | 46.1 |
Property, plant and equipment, net | $ | 15.1 |  |  | $ | 16.4 |
Due to the sale of the SARL businesses in March 2017, net property, plant and equipment, at December 31, 2016, of $13.1 million, including capital leases of $0.2 million, have been reclassified to long term assets of discontinued operations on the consolidated balance sheets. Included in property, plant and equipment are assets under capital leases, as follows (in millions):
| 2017 |  | 2016
Office, computer and other equipment | $ | 6.0 |  |  | $ | 5.7 |
Less: Accumulated amortization | 5.6 |  |  | 5.4 |
| $ | 0.4 |  |  | $ | 0.3 |
Depreciation charged to continuing operations for property, plant and equipment including capital leases in 2017, 2016, and 2015 was $3.9 million, $4.3 million and $5.6 million, respectively. ETG and NATG discontinued operations total depreciation expense was $0.4 million, $3.1 million and $5.5 million, for 2017, 2016 and 2015, respectively.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -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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