Amount of financing receivable originated five or more years prior to latest fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to latest fiscal year.

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Amount of financing receivable originated three years prior to latest fiscal year.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Loans Receivable, Net - Loans Receivable Based On Our Internal Risk Ratings, Separated By Year Of Origination (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans receivable, net	$ 16,164,801	$ 14,191,200
Loans Receivable [Member]
Financing receivable, originated in current fiscal year	5,744,891
Financing receivable, originated in fiscal year before latest fiscal year		6,845,499
Financing receivable, originated two years before latest fiscal year			$ 2,366,378
Financing receivable, originated three years before latest fiscal year				$ 554,221
Financing receivable, originated four years before latest fiscal year					$ 427,384
Financing receivable, originated five or more years before latest fiscal year	226,428
Loans receivable, net	16,164,801
Risk Rating One [Member] \| Loans Receivable [Member]
Financing receivable, originated in current fiscal year	188,881
Financing receivable, originated in fiscal year before latest fiscal year		94,863
Financing receivable, originated two years before latest fiscal year			66,448
Financing receivable, originated three years before latest fiscal year				26,187
Loans receivable, net	376,379
Risk Rating Two [Member] \| Loans Receivable [Member]
Financing receivable, originated in current fiscal year	111,464
Financing receivable, originated in fiscal year before latest fiscal year		2,068,804
Financing receivable, originated two years before latest fiscal year			937,272
Financing receivable, originated three years before latest fiscal year				79,100
Financing receivable, originated four years before latest fiscal year					210,739
Financing receivable, originated five or more years before latest fiscal year	73,744
Loans receivable, net	3,481,123
Risk Rating Three [Member] \| Loans Receivable [Member]
Financing receivable, originated in current fiscal year	5,444,546
Financing receivable, originated in fiscal year before latest fiscal year		$ 4,681,832
Financing receivable, originated two years before latest fiscal year			1,299,525
Financing receivable, originated three years before latest fiscal year				395,482
Financing receivable, originated four years before latest fiscal year					$ 216,645
Financing receivable, originated five or more years before latest fiscal year	99,933
Loans receivable, net	12,137,963
Risk Rating Four [Member] \| Loans Receivable [Member]
Financing receivable, originated two years before latest fiscal year			$ 63,133
Financing receivable, originated three years before latest fiscal year				$ 53,452
Financing receivable, originated five or more years before latest fiscal year	52,751
Loans receivable, net	$ 169,336