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Recent Accounting Pronouncements Recent Accounting Pronouncements Table (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent | $ 6,370 | $ 1,813 | $ 6,370
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 37,154 | 31,464 |
Income Tax Expense (Benefit) | 7,956 | 10,942 |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 29,198 | $ 20,522 |
Weighted Average Number of Shares Outstanding, Diluted | 57,326 | 58,203 |
Weighted Average Number of Shares Outstanding, Basic | 54,728 | 55,828 |
Weighted Average Number Diluted Shares Outstanding Adjustment | 2,598 | 2,375 |
Comprehensive income attributable to noncontrolling interests | $ 525 | $ 364 |
Net Income (Loss) Attributable to Parent | $ 28,673 | $ 20,158 |
Earnings Per Share, Basic | $ 0.52 | $ 0.36 |

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