Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Data (Details)

v2.4.1.9
Quarterly Financial Data (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Total interest income $ 156,220us-gaap_InterestAndDividendIncomeOperating $ 142,303us-gaap_InterestAndDividendIncomeOperating $ 140,149us-gaap_InterestAndDividendIncomeOperating $ 138,535us-gaap_InterestAndDividendIncomeOperating $ 137,457us-gaap_InterestAndDividendIncomeOperating $ 137,974us-gaap_InterestAndDividendIncomeOperating $ 145,325us-gaap_InterestAndDividendIncomeOperating $ 134,835us-gaap_InterestAndDividendIncomeOperating $ 577,207us-gaap_InterestAndDividendIncomeOperating $ 555,591us-gaap_InterestAndDividendIncomeOperating $ 455,046us-gaap_InterestAndDividendIncomeOperating
Total interest expense 31,704us-gaap_InterestExpense 24,718us-gaap_InterestExpense 24,950us-gaap_InterestExpense 26,078us-gaap_InterestExpense 26,922us-gaap_InterestExpense 24,927us-gaap_InterestExpense 24,722us-gaap_InterestExpense 23,836us-gaap_InterestExpense 107,450us-gaap_InterestExpense 100,407us-gaap_InterestExpense 72,106us-gaap_InterestExpense
Net interest income 124,516us-gaap_InterestIncomeExpenseNet 117,585us-gaap_InterestIncomeExpenseNet 115,199us-gaap_InterestIncomeExpenseNet 112,457us-gaap_InterestIncomeExpenseNet 110,535us-gaap_InterestIncomeExpenseNet 113,047us-gaap_InterestIncomeExpenseNet 120,603us-gaap_InterestIncomeExpenseNet 110,999us-gaap_InterestIncomeExpenseNet 469,757us-gaap_InterestIncomeExpenseNet 455,184us-gaap_InterestIncomeExpenseNet 382,940us-gaap_InterestIncomeExpenseNet
Other-than-temporary impairment losses (180)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities 0us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities 0us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (212)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities 0us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities 0us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (1,426)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (236)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (392)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (1,662)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities (10,952)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
Total other income (loss) (143,210)us-gaap_OtherIncome 111,697us-gaap_OtherIncome (65,432)us-gaap_OtherIncome (143,422)us-gaap_OtherIncome 162,021us-gaap_OtherIncome (258,742)us-gaap_OtherIncome 339,640us-gaap_OtherIncome 49,890us-gaap_OtherIncome (240,367)us-gaap_OtherIncome 292,809us-gaap_OtherIncome (75,945)us-gaap_OtherIncome
Total expenses 29,807us-gaap_CostsAndExpenses 40,550us-gaap_CostsAndExpenses 33,370us-gaap_CostsAndExpenses 31,870us-gaap_CostsAndExpenses 27,275us-gaap_CostsAndExpenses 24,178us-gaap_CostsAndExpenses 22,077us-gaap_CostsAndExpenses 13,350us-gaap_CostsAndExpenses 135,597us-gaap_CostsAndExpenses 86,880us-gaap_CostsAndExpenses 50,846us-gaap_CostsAndExpenses
(Benefit from) provision for income taxes (11,718)us-gaap_IncomeTaxExpenseBenefit (4,858)us-gaap_IncomeTaxExpenseBenefit (23,260)us-gaap_IncomeTaxExpenseBenefit (33,902)us-gaap_IncomeTaxExpenseBenefit 6,602us-gaap_IncomeTaxExpenseBenefit 23,726us-gaap_IncomeTaxExpenseBenefit 49,119us-gaap_IncomeTaxExpenseBenefit 4,964us-gaap_IncomeTaxExpenseBenefit (73,738)us-gaap_IncomeTaxExpenseBenefit 84,411us-gaap_IncomeTaxExpenseBenefit (42,219)us-gaap_IncomeTaxExpenseBenefit
Net income from continuing operations (36,963)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 193,590us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 39,657us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (29,145)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 238,679us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (193,599)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 387,621us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 142,339us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 167,139us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 575,040us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 287,416us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
Income from discontinued operations 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 735us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 871us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 1,016us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 1,377us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 3,999us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 4,490us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Net income $ (36,963)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 193,590us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 39,657us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (29,145)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 239,414us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (192,728)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 388,637us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 143,716us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 167,139us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 579,039us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 291,906us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Basic earnings per weighted average common share:                      
Continuing operations $ (0.10)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.53us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.11us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ (0.08)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.66us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ (0.53)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 1.06us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.47us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 0.46us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 1.64us-gaap_IncomeLossFromContinuingOperationsPerBasicShare $ 1.19us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Discontinued operations $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.01us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare $ 0.02us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
Net income $ (0.10)us-gaap_EarningsPerShareBasic $ 0.53us-gaap_EarningsPerShareBasic $ 0.11us-gaap_EarningsPerShareBasic $ (0.08)us-gaap_EarningsPerShareBasic $ 0.66us-gaap_EarningsPerShareBasic $ (0.53)us-gaap_EarningsPerShareBasic $ 1.06us-gaap_EarningsPerShareBasic $ 0.47us-gaap_EarningsPerShareBasic $ 0.46us-gaap_EarningsPerShareBasic $ 1.65us-gaap_EarningsPerShareBasic $ 1.21us-gaap_EarningsPerShareBasic
Diluted earnings per weighted average common share:                      
Continuing operations $ (0.10)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.53us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.11us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ (0.08)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.66us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ (0.53)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 1.06us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.47us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 0.46us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 1.64us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare $ 1.18us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Discontinued operations $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.00us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.01us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare $ 0.02us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
Net income $ (0.10)us-gaap_EarningsPerShareDiluted $ 0.53us-gaap_EarningsPerShareDiluted $ 0.11us-gaap_EarningsPerShareDiluted $ (0.08)us-gaap_EarningsPerShareDiluted $ 0.66us-gaap_EarningsPerShareDiluted $ (0.53)us-gaap_EarningsPerShareDiluted $ 1.06us-gaap_EarningsPerShareDiluted $ 0.47us-gaap_EarningsPerShareDiluted $ 0.46us-gaap_EarningsPerShareDiluted $ 1.65us-gaap_EarningsPerShareDiluted $ 1.20us-gaap_EarningsPerShareDiluted