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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 consist of the following:
In thousands | December 31, 2017 |  | December 31, 2016
Land | $ | 9,408 |  |  | $ | 7,869 |
Facilities and equipment | 554,160 |  |  | 532,122 |
Assets under capital leases | 82,753 |  |  | 54,297 |
| 646,321 |  |  | 594,288 |
Accumulated amortization (1) | (448,001 | ) |  | (423,361 | )
| 198,320 |  |  | 170,927 |
Construction in progress | 56,417 |  |  | 22,496 |
Property, plant and equipment, net | $ | 254,737 |  |  | $ | 193,423 |
(1) Includes $28.2 million and $14.8 million of accumulated amortization related to assets under capital leases at December 31, 2017 and 2016, respectively. Rent expense for operating lease agreements was $18.0 million, $16.8 million, and $14.3 million for the years ended December 31, 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 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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