XML 77 R66.htm IDEA: XBRL DOCUMENT v3.10.0.1

Fair Value (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Fair Value [Abstract]
Increase in fair value of securities available for sale	$ (9,302)	$ 3,102
Tax expense of increase in fair value of securities available for sale	$ 2,174	$ (1,144)

X

- References

No definition available.

+ Details

Name:	fbp_FairValueDisclosureAbstract
Namespace Prefix:	fbp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The value of unrealized holding gains (losses) net of reclassification adjustments.

+ References

No definition available.

+ Details

Name:	fbp_UnrealizedHoldingGainsLossesNetOfReclassifications
Namespace Prefix:	fbp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Tax expense (benefit) on unrealized holding gains (losses) net of reclassification adjustments.

+ References

No definition available.

+ Details

Name:	fbp_UnrealizedHoldingGainsLossesNetOfReclassificationsTaxExpenseBenefit
Namespace Prefix:	fbp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration