Deposits (Summary Of Deposits) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Banking and Thrift [Abstract]
Demand	$ 3,713,063	$ 3,598,872
Checking	2,369,971	2,155,047
Health savings accounts	3,802,313	1,824,799
Money market	1,933,460	1,908,522
Savings	4,047,817	3,892,778
Time deposits	2,086,154	2,271,587
Total interest-bearing	14,239,715	12,052,733
Total deposits	17,952,778	15,651,605
Time deposits and interest-bearing checking, included in above balances, obtained through brokers	910,304	651,725
Time deposits, included in above balance, that meet or exceed the Federal Deposit Insurance Corporation limit	542,206	533,980
Demand deposit overdrafts reclassified as loan balances	$ 1,356	$ 1,655

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- Definition

Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

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- Definition

Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

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- Definition

The aggregate of all domestic and foreign interest-bearing deposit liabilities.

+ References

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Amount of interest-bearing domestic third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.

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- Definition

Amount of interest-bearing domestic checking deposit liabilities.

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- Definition

The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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- Definition

Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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- Definition

Deposits Health Savings Accounts

+ References

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- Definition

Time Deposits which meet or exceed the FDIC insurance limit

+ References

No definition available.

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