Derivatives and Hedging Activities (Tables)

9 Months Ended

Jun. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value and Balance Sheet Classification

Although management is not aware of any factors that would materially affect the estimated fair value amounts presented below, such amounts have not been comprehensively revalued for purposes of these financial statements since the dates shown, and therefore, estimates of fair value subsequent to those dates may differ significantly from the amounts presented below.



		June 30, 2015				September 30, 2014
	Level in Fair Value Hierarchy	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
		(In thousands)
Financial assets
Cash and cash equivalents	1	$	349,550	$	349,550	$	781,843	$	781,843
Available-for-sale securities
Equity securities	1	102,447		102,447		101,387		101,387
Obligations of U.S. government	2	529,472		529,472		731,943		731,943
Obligations of states and political subdivisions	2	27,275		27,275		23,681		23,681
Corporate debt securities	2	528,716		528,716		509,007		509,007
Mortgage-backed securities
Agency pass-through certificates	2	1,328,852		1,328,852		1,584,508		1,584,508
Other Commercial MBS	2	107,612		107,612		98,916		98,916
Total available-for-sale securities		2,624,374		2,624,374		3,049,442		3,049,442
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	2	1,586,514		1,553,716		1,548,265		1,499,218
Total held-to-maturity securities		1,586,514		1,553,716		1,548,265		1,499,218

Loans receivable	3	8,645,609		9,175,928		8,148,322		8,667,771
Covered loans	3	77,311		81,737		176,476		176,761
FDIC indemnification asset	3	18,783		18,263		36,860		35,976
FHLB and FRB stock	2	103,189		103,189		158,839		158,839
Bank owned life insurance	2	101,720		101,720		—		—
Other assets - interest rate contracts	2	—		5,429		—		2,879

Financial liabilities
Customer accounts	2	10,578,385		9,830,817		10,716,928		9,946,586
FHLB advances	2	1,730,000		1,833,413		1,930,000		2,054,437
Other liabilities - interest rate contracts	2	—		5,429		—		2,879
Other liabilities - long term borrowing hedge	2	—		3,914		—		268

The following table presents the fair value and balance sheet classification of derivatives at June 30, 2015 and September 30, 2014:

Asset Derivatives

Liability Derivatives

June 30, 2015

September 30, 2014

June 30, 2015

September 30, 2014

Balance Sheet

Location

Fair Value

Location

Fair Value

Location

Fair Value

Location

Fair Value

(In thousands)

Interest rate contracts

Other assets

5,429

Other assets

2,879

Other liabilities

5,429

Other liabilities

2,879

Long term borrowing hedge

Other assets

—

Other assets

—

Other liabilities

3,914

Other liabilities

268