Commitments, Contingencies and Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of credit-related commitments

As of December 31, 2017, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows:

($ in thousands)	Amount
2018	$	98,000
2019	34,790
2020	16,744
2021	7,734
2022	11,078
Thereafter	841
Total	$	169,187

The following table presents the Company’s credit-related commitments as of the periods indicated:

($ in thousands)	December 31,
	2017		2016
Loan commitments	$	5,075,480	$	5,077,869
Commercial letters of credit and SBLCs	$	1,655,897	$	1,525,613

Schedule of estimated future minimum rental payments under non-cancelable operating leases

Future minimum rental payments under non-cancellable operating leases are estimated as follows:

Years Ending December 31,	Amount ($ in thousands)
2018	$	31,845
2019	27,005
2020	22,242
2021	18,635
2022	13,944
Thereafter	27,988
Total	$	141,659