Debt Instrument, Fronting Fee, Percentage

No definition available.

Name:	frp_DebtInstrumentFrontingFeePercentage
Namespace Prefix:	frp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Mandatory Repayments, Percentage of Excess Cash Flow

+ References

No definition available.

+ Details

Name:	frp_DebtInstrumentMandatoryRepaymentsPercentageOfExcessCashFlow
Namespace Prefix:	frp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instruments, Restrictive Covenants

+ References

No definition available.

+ Details

Name:	frp_DebtInstrumentsRestrictiveCovenantsNumber
Namespace Prefix:	frp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Long term debt.

+ References

No definition available.

+ Details

Name:	frp_LongTermDebtTextualAbstract
Namespace Prefix:	frp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Refinancing [Abstract]

+ References

No definition available.

+ Details

Name:	frp_RefinancingAbstract
Namespace Prefix:	frp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of cash paid for interest during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

+ Details

Name:	us-gaap_InterestPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: 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(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: 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(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfDebtIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=frp_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=frp_SeniorSecuredNotesDue2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=frp_DebtInstrumentCommitmentFeePeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=frp_DebtInstrumentCommitmentFeePeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=frp_DebtInstrumentMandatoryRepaymentsPeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=frp_DebtInstrumentMandatoryRepaymentsSubsequentPeriodsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	frp_DebtCovenantAxis=frp_ConsolidatedTotalLeverageRatioCovenantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt (Narrative) (Details)		2 Months Ended
Long-Term Debt (Narrative) (Details)	Feb. 14, 2013 USD ($) covenants	Feb. 14, 2013 USD ($) covenants	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Long Term Debt [Abstract]
Remaining borrowing capacity			$ 60,200,000
Letter of credit outstanding			14,800,000
Refinancing [Abstract]
Long-term debt			$ 905,606,000	$ 906,545,000
Repayments of debt		$ 946,500,000
Interest paid		7,700,000
Payments of debt issuance costs		32,600,000
Senior Secured Notes due 2019
Refinancing [Abstract]
Debt instrument face amount	$ 300,000,000.0	$ 300,000,000.0
Stated interest rate	8.75%	8.75%	8.75%
Revolving Credit Facility \| Letter of Credit
Refinancing [Abstract]
Line of of credit facility outstanding	$ 40,000,000.0	$ 40,000,000.0
Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Line of of credit facility outstanding	75,000,000.0	75,000,000.0
Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Long-term debt	640,000,000.0	640,000,000.0
Proceeds from line of credit	640,000,000
Maximum borrowing capacity	200,000,000.0	200,000,000.0
Senior Secured Notes Due 2019 \| Senior Secured Notes due 2019
Refinancing [Abstract]
Debt instrument face amount	$ 300,000,000.0	$ 300,000,000.0
Stated interest rate	8.75%	8.75%	8.75%
Maximum \| Senior Secured Notes Due 2019 \| Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Stated interest rate	5.50%	5.50%
Maximum \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Stated interest rate	6.25%	6.25%
Minimum \| Senior Secured Notes Due 2019 \| Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Stated interest rate	4.50%	4.50%
Fronting fee percent	0.125%	0.125%
Minimum \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Stated interest rate	5.25%	5.25%
LIBOR \| Senior Secured Notes Due 2019 \| Term Loan, due 2019
Refinancing [Abstract]
Point in addition to base interest rate under condition	1.25%
LIBOR \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Point in addition to base interest rate under condition	1.00%
Base Rate [Member] \| Senior Secured Notes Due 2019 \| Term Loan, due 2019
Refinancing [Abstract]
Point in addition to base interest rate under condition	0.50%
Commitment Fee, Period One \| Senior Secured Notes Due 2019 \| Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Percentage commitment fee on average daily unused portion of exit revolving facility	0.50%
Commitment Fee, Period Two \| Senior Secured Notes Due 2019 \| Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Percentage commitment fee on average daily unused portion of exit revolving facility	0.375%
Mandatory Repayments, Period One \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Mandatory repayments as a percent of excess cash flow	50.00%	50.00%
Mandatory Repayments, Subsequent Periods \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Mandatory repayments as a percent of excess cash flow	25.00%	25.00%
Redemption on or after February 15, 2016 and prior to February 15, 2017 \| Senior Secured Notes Due 2019 \| Senior Secured Notes due 2019
Refinancing [Abstract]
Redemption price percent	104.375%
Redemption on or prior to February 14, 2016 \| Senior Secured Notes Due 2019 \| Term Loan, due 2019 \| Notes Payable to Banks
Refinancing [Abstract]
Periodic principal payment	$ 1,600,000
Redemption on or after February 15, 2017 and prior to February 15, 2018 \| Senior Secured Notes Due 2019 \| Senior Secured Notes due 2019
Refinancing [Abstract]
Redemption price percent	102.188%
Consolidated Total Leverage Ratio Covenant \| Revolving Credit Facility \| Line of Credit
Refinancing [Abstract]
Number of restrictive covenants \| covenants	2	2