Stockholders' Equity Reclassifications out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Realized losses (gains) on sales of certain AFS securities, net of tax | $ 42,996 | $ (5,618) | $ 95,549 | $ 15,485 |
| Amounts reclassified from accumulated other comprehensive income (loss) | 30,463 | 4,220 | (53,017) | 7,815 |
| Reclassification out of Accumulated Other Comprehensive Income [Member] | ||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Other-than-temporary impairments on AFS securities | 95 | 0 | 363 | 429 |
| Realized losses (gains) on sales of certain AFS securities, net of tax | $ 30,368 | $ 4,220 | $ 52,654 | $ 7,386 |
| X | ||||||||||
- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of unrealized and realized gain (loss) on investment in marketable security, excluding other-than-temporary impairment (OTTI). No definition available.
|
| X | ||||||||||
- Definition The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|