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Other Investments (Summarized Investee Financial Information) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Balance Sheets |  |  |
Total assets | $ 3,653,763 | $ 2,118,045 |
Total liabilities | 1,918,034 | 1,016,502 |
Noncontrolling interests | 1,486 | 2,007 |
Total equity attributable to parent entities | 1,734,243 | 1,099,536 |
Income Statements |  |  |
Revenues | 214,123 | 262,970 | $ 261,867
Expenses | (181,456) | (187,257) | (167,999)
Net income attributable to parent entities | $ 32,474 | $ 75,056 | $ 91,633

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