| Label | Element | Value |
|---|---|---|
| Restricted Stock Award, Forfeitures | us-gaap_RestrictedStockAwardForfeitures | $ 4,481,000 |
| Restricted Stock Award, Forfeitures | us-gaap_RestrictedStockAwardForfeitures | 4,053,000 |
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | 7,557,000 |
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | 4,983,000 |
| OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax | us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax | 54,843,000 |
| OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax | us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax | (442,443,000) |
| Dividends, Common Stock, Cash | us-gaap_DividendsCommonStockCash | 29,456,000 |
| Dividends, Common Stock, Cash | us-gaap_DividendsCommonStockCash | 29,796,000 |
| Retained Earnings [Member] | ||
| Net Income (Loss) Attributable to Parent | us-gaap_NetIncomeLoss | 120,128,000 |
| Net Income (Loss) Attributable to Parent | us-gaap_NetIncomeLoss | (1,195,424,000) |
| AOCI Attributable to Parent [Member] | ||
| OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax | us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax | (442,443,000) |
| OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax | us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax | 54,843,000 |
| Additional Paid-in Capital [Member] | ||
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | 4,981,000 |
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | 7,556,000 |
| Dividends, Common Stock, Cash | us-gaap_DividendsCommonStockCash | 29,796,000 |
| Dividends, Common Stock, Cash | us-gaap_DividendsCommonStockCash | 29,456,000 |
| Common Stock [Member] | ||
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | 1,000 |
| Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture | us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation | $ 2,000 |
| Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures | 168,460 |
| Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures | 109,466 |
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited | 92,554 |
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited | 146,303 |
| Treasury Stock [Member] | ||
| Restricted Stock Award, Forfeitures | us-gaap_RestrictedStockAwardForfeitures | $ 4,481,000 |
| Restricted Stock Award, Forfeitures | us-gaap_RestrictedStockAwardForfeitures | $ 4,053,000 |