XML 136 R92.htm IDEA: XBRL DOCUMENT v2.4.1.9
Premises and Equipment - Schedule of Premises and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 198,241us-gaap_PropertyPlantAndEquipmentGross $ 234,878us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization 133,252us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment 166,938us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total premises and equipment 64,989us-gaap_PropertyPlantAndEquipmentNet 67,940us-gaap_PropertyPlantAndEquipmentNet
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 12,098us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
12,431us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
Buildings and improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 75,873us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingImprovementsMember
81,829us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingImprovementsMember
Buildings and improvements [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 10 years  
Buildings and improvements [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 50 years  
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 14,229us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
14,354us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
Leasehold improvements [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 5 years  
Leasehold improvements [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 40 years  
Furniture and equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 59,034us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= fcf_FurnitureAndEquipmentMember
80,131us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= fcf_FurnitureAndEquipmentMember
Furniture and equipment [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 3 years  
Furniture and equipment [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 10 years  
Software [Member]    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, gross 37,007us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerSoftwareIntangibleAssetMember
$ 46,133us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerSoftwareIntangibleAssetMember
Software [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 3 years  
Software [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 7 years