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Organization And Summary Of Significant Accounting Policies Organization And Summary Of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2018
Accounting Policies [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles |
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|  | For the six months ended June 30, 2017 |
|  | As reported |  | Effect of accounting change |  | As adjusted |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  | (in thousands) |
Cost of Sales |  |  | 210,289 |  |  | (402 | ) |  | 209,887 |
Research and development |  |  | 1,772 |  |  | (18 | ) |  | 1,754 |
Selling and administrative expenses |  |  | 23,878 |  |  | (54 | ) |  | 23,824 |
Other (income) expense, net |  |  | 4,253 |  |  | 474 |  |  | 4,727 |
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|  | For the year ended December 31, 2017 |  | For the year ended December 31, 2016 |
|  | As reported |  | Effect of accounting change |  | As adjusted |  | As reported |  | Effect of accounting change |  | As adjusted |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  | (in thousands) |
Cost of Sales |  |  | 462,848 |  |  | 206 |  |  | 463,054 |  |  | 466,990 |  |  | 1,212 |  |  | 468,202 |
Research and development |  |  | 2,951 |  |  | 505 |  |  | 3,456 |  |  | 2,399 |  |  | 135 |  |  | 2,534 |
Selling and administrative |  |  | 49,479 |  |  | 3,027 |  |  | 52,506 |  |  | 57,784 |  |  | 731 |  |  | 58,515 |
Other (income) expense, net |  |  | 1,634 |  |  | (3,738 | ) |  | (2,104 | ) |  | (2,188 | ) |  | (2,078 | ) |  | (4,266 | )
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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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