Balance Sheet Offsetting (Tables)

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Financial Instruments Eligible for Offset Consolidated Balance Sheet

Information about financial instruments that are eligible for offset in the consolidated balance sheet as of December 31, 2017 is presented in the following tables.

	Gross Amount Recognized		Gross Amount Offset		Net Amount Recognized
December 31, 2017
Financial assets:
Derivatives:
Loan/lease interest rate swaps and caps	$	2,140	$	—	$	2,140
Commodity swaps and options	1,592		—		1,592
Foreign currency forward contracts	78		—		78
Total derivatives	3,810		—		3,810
Resell agreements	9,642		—		9,642
Total	$	13,452	$	—	$	13,452
Financial liabilities:
Derivatives:
Loan/lease interest rate swaps	$	13,413	$	—	$	13,413
Commodity swaps and options	13,774		—		13,774
Foreign currency forward contracts	188		—		188
Total derivatives	27,375		—		27,375
Repurchase agreements	1,117,199		—		1,117,199
Total	$	1,144,574	$	—	$	1,144,574

Information about financial instruments that are eligible for offset in the consolidated balance sheet as of March 31, 2018 is presented in the following tables.

	Gross Amount Recognized		Gross Amount Offset		Net Amount Recognized
March 31, 2018
Financial assets:
Derivatives:
Loan/lease interest rate swaps and caps	$	4,608	$	—	$	4,608
Commodity swaps and options	2,660		—		2,660
Foreign currency forward contracts	176		—		176
Total derivatives	7,444		—		7,444
Resell agreements	9,642		—		9,642
Total	$	17,086	$	—	$	17,086
Financial liabilities:
Derivatives:
Loan/lease interest rate swaps	$	8,906	$	—	$	8,906
Commodity swaps and options	19,713		—		19,713
Foreign currency forward contracts	73		—		73
Total derivatives	28,692		—		28,692
Repurchase agreements	1,015,021		—		1,015,021
Total	$	1,043,713	$	—	$	1,043,713

Financial Instruments Derivative Assets Liabilities and Resell Agreements Net of Amount Not Offset

			Gross Amounts Not Offset
	Net Amount Recognized		Financial Instruments			Collateral			Net Amount
December 31, 2017
Financial assets:
Derivatives:
Counterparty A	$	395	$	(395	)	$	—		$	—
Counterparty B	1,028		(1,028		)	—			—
Counterparty C	55		(55		)	—			—
Other counterparties	2,332		(1,830		)	(387		)	115
Total derivatives	3,810		(3,308		)	(387		)	115
Resell agreements	9,642		—			(9,642		)	—
Total	$	13,452	$	(3,308	)	$	(10,029	)	$	115
Financial liabilities:
Derivatives:
Counterparty A	$	7,397	$	(395	)	$	(7,002	)	$	—
Counterparty B	4,466		(1,028		)	(3,101		)	337
Counterparty C	1,520		(55		)	(1,450		)	15
Other counterparties	13,992		(1,830		)	(11,215		)	947
Total derivatives	27,375		(3,308		)	(22,768		)	1,299
Repurchase agreements	1,117,199		—			(1,117,199		)	—
Total	$	1,144,574	$	(3,308	)	$	(1,139,967	)	$	1,299

			Gross Amounts Not Offset
	Net Amount Recognized		Financial Instruments			Collateral			Net Amount
March 31, 2018
Financial assets:
Derivatives:
Counterparty A	$	1,012	$	(1,012	)	$	—		$	—
Counterparty B	2,152		(2,152		)	—			—
Counterparty C	84		(84		)	—			—
Other counterparties	4,196		(1,217		)	(2,751		)	228
Total derivatives	7,444		(4,465		)	(2,751		)	228
Resell agreements	9,642		—			(9,642		)	—
Total	$	17,086	$	(4,465	)	$	(12,393	)	$	228
Financial liabilities:
Derivatives:
Counterparty A	$	5,706	$	(1,012	)	$	(4,694	)	$	—
Counterparty B	4,103		(2,152		)	(1,258		)	693
Counterparty C	1,467		(84		)	(1,383		)	—
Other counterparties	17,416		(1,217		)	(16,099		)	100
Total derivatives	28,692		(4,465		)	(23,434		)	793
Repurchase agreements	1,015,021		—			(1,015,021		)	—
Total	$	1,043,713	$	(4,465	)	$	(1,038,455	)	$	793

Remaining Contractual Maturity of the Securities Sold Under Agreement [Table Text Block]

The remaining contractual maturity of repurchase agreements in the consolidated balance sheets as of March 31, 2018 and December 31, 2017 is presented in the following tables.

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
March 31, 2018
Repurchase agreements:
U.S. Treasury	$	999,320	$	—	$	—	$	—	$	999,320
Residential mortgage-backed securities	15,701		—		—		—		15,701
Total borrowings	$	1,015,021	$	—	$	—	$	—	$	1,015,021
Gross amount of recognized liabilities for repurchase agreements									$	1,015,021
Amounts related to agreements not included in offsetting disclosures above									$	—
December 31, 2017
Repurchase agreements:
U.S. Treasury	$	1,036,891	$	—	$	—	$	—	$	1,036,891
Residential mortgage-backed securities	80,308		—		—		—		80,308
Total borrowings	$	1,117,199	$	—	$	—	$	—	$	1,117,199
Gross amount of recognized liabilities for repurchase agreements									$	1,117,199
Amounts related to agreements not included in offsetting disclosures above									$	—