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Newly Adopted Accounting Pronouncements (Tables) | 6 Months Ended
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Jun. 30, 2018
Accounting Changes and Error Corrections [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] | The reclassification from Accounts Receivable to Other Current Liabilities in accordance with the detail described above impacted the Condensed Consolidated Balance Sheet as of June 30, 2018, as follows (in thousands):
| As Reported |  | Balances Without Adoption of ASC 606 |  | Effect of Change Higher/(Lower)
ASSETS |  |  |  |  |
Accounts Receivable | $ | 215,323 |  |  | $ | 214,175 |  |  | $ | 1,148 |
Total Current Assets | 445,262 |  |  | 444,114 |  |  | 1,148 |
Total Assets | $ | 986,084 |  |  | $ | 984,936 |  |  | $ | 1,148 |
LIABILITIES |  |  |  |  |
Other Current Liabilities | $ | 66,753 |  |  | $ | 65,605 |  |  | $ | 1,148 |
Total Current Liabilities | 245,422 |  |  | 244,274 |  |  | 1,148 |
Total Liabilities | $ | 683,887 |  |  | $ | 682,739 |  |  | $ | 1,148 |
Schedule of Reconciliation Between Cash and Cash Equivalents and Restricted Cash on the Balance Sheet to Cash, Cash Equivalents and Restricted Cash on the Statement of Cash Flow [Table Text Block] | The following table provides a reconciliation of Cash and Cash Equivalents and Restricted Cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same amounts shown in the Condensed Consolidated Statements of Cash Flows (in thousands):
| June 30,
| 2018
Cash and Cash Equivalents | $ | 53,901 |
Restricted Cash | 543 |
Total Cash, Cash Equivalents and Restricted Cash at end of period shown in the Condensed Consolidated Statements of Cash Flows | $ | 54,444 |

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- Definition Schedule of relationship between Cash and Cash Equivalents and Restricted Cash on the Balance Sheet to Cash, Cash Equivalents and Restricted Cash reported on the Statement of Cash Flow [Table Text Block] + References No definition available. + Details
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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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