Carry Value Term Loan

No definition available.

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- Definition

MaturityDate2022Notes

+ References

No definition available.

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- Definition

Optional Revolver Commitment

+ References

No definition available.

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- Definition

Outstanding balance on term loan

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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- Definition

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

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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- Definition

Amount of the required periodic payments applied to principal.

+ References

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- 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

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- Definition

Amount of cash inflow (outflow) from financing activities classified as other.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

+ References

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- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

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Debt (Details Textual) - USD ($) $ in Millions	9 Months Ended
Debt (Details Textual) - USD ($) $ in Millions	Sep. 27, 2018	Sep. 28, 2017	Dec. 31, 2017	Dec. 31, 2016	Jun. 01, 2016
Debt Instrument [Line Items]
Proceeds from (Payments for) Other Financing Activities	$ 0.0	$ 0.0
Optional Revolver Commitment	750.0
Restricted Cash and Cash Equivalents	0.3	$ 3.2	$ 2.2	$ 0.0
Senior Unsecured Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300.0
Debt Instrument, Interest Rate Terms	The Floating Rate Notes bear interest at a rate per annum equal to three-month LIBOR, as determined in the case of the initial interest period, on May 25, 2018, and thereafter at the beginning of each quarterly period as described herein, plus 80 basis points and mature on June 15, 2021. Interest on the Floating Rate Notes is payable on March 15, June 15, September 15 and December 15 of each year, beginning on September 15, 2018.
Senior Notes, Noncurrent	$ 298.4		0.0
Senior Notes, Current	0.0		0.0
Secured Debt Term A [Member]
Debt Instrument [Line Items]
Unsecured Long-term Debt, Noncurrent	187.8
Gain (Loss) on Extinguishment of Debt	1.3
Senior unsecured notes due 2022 [Member]
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt	13.2
Senior Notes, Noncurrent	0.0		294.8
Senior Notes, Current	$ 0.0		0.0
Senior Unsecured Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 300.0
Debt Instrument, Interest Rate, Stated Percentage					3.85%
Maturity Date 2022 Notes	Jun. 15, 2026
Senior Notes, Noncurrent	$ 297.5		297.2
Senior Notes, Current	0.0		$ 0.0
Amended and Restated Credit Agreement Due 2021 [Member]
Debt Instrument [Line Items]
Outstanding Balance Term Loan	206.3
Carry Value Term Loan	204.9
2018 Amended Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,260.0
2018 Revolver [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	800.0
2018 Term Loan A [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	206.0
Debt Instrument, Periodic Payment, Principal	2.6
Delayed Draw Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 250.0
2018 Revolver, 2018 Term Loan, Delayed Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate Terms	Each of the 2018 Revolver, the 2018 Term Loan and the Delayed Draw Term Loan matures July 12, 2023, and bears interest, at Spirit’s option, at either LIBOR plus 1.375% or a defined “base rate” plus 0.375%, subject to adjustment to between LIBOR plus 1.125% and LIBOR plus 1.875% (or between base rate plus 0.125% and base rate plus 0.875%, as applicable) based on changes to Spirit’s senior unsecured debt rating provided by Standard & Poor’s Financial Services LLC and/or Moody’s Investors Service, Inc.
Debt Instrument, Payment Terms	The principal obligations under the Delayed Draw Term Loan are to be repaid in equal quarterly installments of 1.25% of the outstanding principal amount of the Delayed Draw Term Loan as of March 31, 2019, subject to adjustments for any extension of the availability period of the Delayed Draw Term Loan, with the balance due at maturity of the Delayed Draw Term Loan.