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Correction of Accounting Error in Prior Period - (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Error Corrections and Prior Period Adjustments Restatement |  |  |
Provision for excess and obsolete inventory | $ 2,205 | $ 8,135 | $ 1,051
Change in inventories | 10,512 | 10,567 | 6,572
Net cash provided by (used in) operating activities | $ 46,965 | 56,284 | $ (8,788)
Previously Reported |  |  |
Error Corrections and Prior Period Adjustments Restatement |  |  |
Provision for excess and obsolete inventory |  | (8,135) |
Change in inventories |  | 5,703 |
Net cash provided by (used in) operating activities |  | 56,284 |
Adjusted |  |  |
Error Corrections and Prior Period Adjustments Restatement |  |  |
Provision for excess and obsolete inventory |  | 8,135 |
Change in inventories |  | (10,567) |
Net cash provided by (used in) operating activities |  | 56,284 |
Total Adjustment |  |  |
Error Corrections and Prior Period Adjustments Restatement |  |  |
Provision for excess and obsolete inventory |  | 16,270 |
Change in inventories |  | $ (16,270) |

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- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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