Loans and Allowance for Credit Losses Troubled Debt Restructuring Modification (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2016 USD ($) loans	Jun. 30, 2015 USD ($) loans	Jun. 30, 2016 USD ($) loans	Jun. 30, 2015 USD ($) loans
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	30	23	73	51
Post-Modification Recorded Investment	$ 2,803,000	$ 2,374,000	$ 6,480,000	$ 13,691,000
Extended Maturity With Rate Concession [Member] \| Real-estate - home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	1	0
Post-Modification Recorded Investment	$ 0	$ 0	$ 44,000	$ 0
Extended Maturity With Rate Concession [Member] \| Real-estate - residential mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	0	1
Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 104,000
Extended Maturity Without Rate Concession [Member] \| Commercial - Secured [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	4	3	6	11
Post-Modification Recorded Investment	$ 1,146,000	$ 1,047,000	$ 1,976,000	$ 7,823,000
Extended Maturity Without Rate Concession [Member] \| Commercial - unsecured [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	2	1
Post-Modification Recorded Investment	$ 0	$ 0	$ 103,000	$ 42,000
Extended Maturity Without Rate Concession [Member] \| Real-estate commercial mortage [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	1	0	4
Post-Modification Recorded Investment	$ 0	$ 132,000	$ 0	$ 2,627,000
Extended Maturity Without Rate Concession [Member] \| Real-estate - residential mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	2	0	2	2
Post-Modification Recorded Investment	$ 315,000	$ 0	$ 315,000	$ 225,000
Extended Maturity Without Rate Concession [Member] \| Construction - commercial residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	0	1
Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 889,000
Bankruptcy [Member] \| Real-estate - home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	23	15	60	25
Post-Modification Recorded Investment	$ 969,000	$ 739,000	$ 3,667,000	$ 1,231,000
Bankruptcy [Member] \| Real-estate - residential mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	1	4	1	5
Post-Modification Recorded Investment	$ 373,000	$ 456,000	$ 373,000	$ 737,000
Bankruptcy [Member] \| Consumer - direct [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	1	0
Post-Modification Recorded Investment	$ 0	$ 0	$ 2,000	$ 0
Bankruptcy [Member] \| Consumer - Indirect [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loans	0	0	0	1
Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 13,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=fult_ExtendedMaturityWithRateConcessionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_HomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=fult_ExtendedMaturityWithoutRateConcessionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fult_CommercialSecuredMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fult_CommercialUnsecuredMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fult_ConstructionCommercialResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=fult_BankruptcyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fult_ConsumerDirectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=fult_ConsumerIndirectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: