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Valuation and Qualifying Accounts (Text Block) | 12 Months Ended
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Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | VALUATION AND QUALIFYING ACCOUNTS
Description |  | Balance at Beginning of Period |  | Other Adjustments |  | Additions Charged to Costs and Expenses |  | Balance at End of Period, Noncurrent
|  | (in thousands)
Year ended December 31, 2016: |  |  |  |  |  |  |  |
Deferred tax assets valuation allowance |  | $ | 235,339 |  |  | $ | (12,419 | ) |  | $ | 26,640 |  |  | $ | 249,560 |
Year ended December 31, 2015: |  |  |  |  |  |  |  |
Deferred tax assets valuation allowance |  | $ | 257,728 |  |  | $ | (62,791 | ) |  | $ | 40,402 |  |  | $ | 235,339 |
Year ended December 31, 2014: |  |  |  |  |  |  |  |
Deferred tax assets valuation allowance |  | $ | 162,588 |  |  | $ | (4,913 | ) |  | $ | 100,053 |  |  | $ | 257,728 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration