Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Total interest income | $ 133,605 | $ 152,834 | $ 152,529 | $ 162,969 | $ 156,220 | $ 142,303 | $ 140,149 | $ 138,535 | $ 601,937 | $ 577,207 | $ 555,591 |
| Total interest expense | 36,575 | 37,079 | 35,029 | 33,503 | 31,704 | 24,718 | 24,950 | 26,078 | 142,186 | 107,450 | 100,407 |
| Net interest income | 97,030 | 115,755 | 117,500 | 129,466 | 124,516 | 117,585 | 115,199 | 112,457 | 459,751 | 469,757 | 455,184 |
| Other-than-temporary impairment losses | 0 | (238) | (170) | (127) | (180) | 0 | 0 | (212) | (535) | (392) | (1,662) |
| Total other income (loss) | 160,308 | (119,286) | 134,110 | (7,100) | (143,210) | 111,697 | (65,432) | (143,422) | 168,032 | (240,367) | 292,809 |
| Total expenses | 37,852 | 38,677 | 36,896 | 38,103 | 29,807 | 40,550 | 33,370 | 31,870 | 151,528 | 135,597 | 86,880 |
| (Benefit from) provision for income taxes | 8,780 | (7,656) | (6,957) | (10,657) | (11,718) | (4,858) | (23,260) | (33,902) | (16,490) | (73,738) | 84,411 |
| Net income | $ 210,706 | $ (34,790) | $ 221,501 | $ 94,793 | $ (36,963) | $ 193,590 | $ 39,657 | $ (29,145) | $ 492,210 | $ 167,139 | $ 579,039 |
| Earnings Per Share, Basic and Diluted | $ 0.59 | $ (0.09) | $ 0.60 | $ 0.26 | $ (0.10) | $ 0.53 | $ 0.11 | $ (0.08) | |||
| Weighted Average Number of Shares Outstanding, Basic and Diluted | 360,090,432 | 367,365,973 | 367,074,131 | 366,507,657 | 366,230,566 | 366,118,866 | 366,078,124 | 365,611,890 | |||
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net amount of operating interest income (expense). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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