Derivative Instruments and Other Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Outstanding Derivative Instruments

Information pertaining to outstanding derivative instruments is as follows:

(Dollars in thousands)	Balance Sheet		Asset Derivatives Fair Value				Balance Sheet		Liability Derivatives Fair Value
	Location		March 31, 2015		December 31, 2014		Location		March 31, 2015		December 31, 2014
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts		Other assets	$	19,970	$	15,434		Other liabilities	$	19,970	$	15,434
Forward sales contracts		Other assets		1,125		25		Other liabilities		3,910		2,556
Written and purchased options		Other assets		20,025		17,444		Other liabilities		11,824		13,364
Total			$	41,120	$	32,903			$	35,704	$	31,354
(Dollars in thousands)			Asset Derivatives Notional Amount						Liability Derivatives Notional Amount
			March 31, 2015		December 31, 2014				March 31, 2015		December 31, 2014
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts			$	502,020	$	444,703			$	502,020	$	444,703
Forward sales contracts				139,339		15,897				514,645		391,992
Written and purchased options				489,209		362,580				214,698		225,741
Total			$	1,130,568	$	823,180			$	1,231,363	$	1,062,436

Reconciliation of Gross Amounts in Consolidated Balance Sheets

The following table reconciles the gross amounts presented in the consolidated balance sheets to the net amounts that would result in the event of offset.

	March 31, 2015
	Gross Amounts Presented in the		Gross Amounts Not Offset in the Balance Sheet
(Dollars in thousands)	Balance Sheet		Derivatives		Collateral (1)			Net
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts not designated as hedging instruments	$	19,962	$	—	$	—		$	19,962
Written and purchased options		11,830		—		—			11,830
Total derivative assets subject to master netting arrangements	$	31,792	$	—	$	—		$	31,792
Derivative liabilities
Interest rate contracts not designated as hedging instruments	$	19,963	$	—	$	(7,494	)	$	12,469
Total derivative liabilities subject to master netting arrangements	$	19,963	$	—	$	(7,494	)	$	12,469

⁽¹⁾ Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

	December 31, 2014
	Gross Amounts		Gross Amounts Not Offset in the Balance Sheet
	Presented in the
(Dollars in thousands)	Balance Sheet		Derivatives		Collateral (1)			Net
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts not designated as hedging instruments	$	15,411	$	—	$	—		$	15,411
Written and purchased options		13,387		—		—			13,387
Total derivative assets subject to master netting arrangements	$	28,798	$	—	$	—		$	28,798
Derivative liabilities
Interest rate contracts not designated as hedging instruments	$	15,411	$	—	$	(3,735	)	$	11,676
Total derivative liabilities subject to master netting arrangements	$	15,411	$	—	$	(3,735	)	$	11,676

⁽¹⁾ Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

Effect of Derivatives Not Designated as Hedging Instruments on Consolidated Financial Statements

Information pertaining to the effect of derivatives not designated as hedging instruments on the consolidated financial statements for the three months ended March 31 is as follows:

(Dollars in thousands)	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
		2015			2014
Interest rate contracts	Other income	$	1,005		$	538
Forward sales contracts	Mortgage income		(253	)		(3,005	)
Written and purchased options	Mortgage income		768			1,833
Total		$	1,520		$	(634	)