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Debt - Credit Agreement (Details) - USD ($) $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Feb. 12, 2016 | Sep. 30, 2018 | Oct. 01, 2017
Credit Agreement |  |  |
Stand-by letters of credit outstanding |  | $ 25.8 | $ 25.7
Letters of credit |  |  |
Credit Agreement |  |  |
Term of debt |  | 1 year |
Credit Agreement |  |  |
Credit Agreement |  |  |
Term of debt | 5 years |  |
Sublimit on letters of credit | $ 100.0 |  |
Eurocurrency rate loans | LIBOR | Minimum |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 0.975% |
Eurocurrency rate loans | LIBOR | Maximum |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 1.45% |
Base rate loans and swing line loans | LIBOR |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 1.00% |
Base rate loans and swing line loans | LIBOR | Minimum |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 0.00% |
Base rate loans and swing line loans | LIBOR | Maximum |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 0.45% |
Base rate loans and swing line loans | Federal funds |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 0.50% |
Senior unsecured revolving credit facility |  |  |
Credit Agreement |  |  |
Borrowing capacity | $ 500.0 |  |
Amount drawn |  | $ 45.0 |
Interest rate on revolving credit facility (as a percent) |  | 3.14% |
Unused and available credit under the credit agreement |  | $ 429.2 |
Term loan facility | Term Loan due February 2021 |  |  |
Credit Agreement |  |  |
Term of debt | 5 years |  |
Face amount | $ 300.0 |  |
Interest rate on term loan facility (as a percent) |  | 3.64% |
First year (as a percent) | 0.00% |  |
Second and third years (as a percent) | 7.50% |  |
Fourth and fifth years (as a percent) | 10.00% |  |
Amount drawn |  | $ 300.0 |
Borrowings outstanding |  | 260.6 | $ 288.8
Repayment of debt |  | $ 16.9 |
Term loan facility | LIBOR | Minimum | Term Loan due February 2021 |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 1.125% |
Term loan facility | LIBOR | Maximum | Term Loan due February 2021 |  |  |
Credit Agreement |  |  |
Interest rate added to base rate (as a percent) |  | 1.75% |

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- 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
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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(a)(1)) -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 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- 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
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- Definition The effective interest rate at the end of the reporting period. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- 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
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- 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
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- Definition The percentage of amortization of the carrying value of debt instrument in year one. + References No definition available. + Details
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- Definition The percentage of amortization of the carrying value of the debt instrument in the fourth and fifth fiscal year following the latest fiscal year. + References No definition available. + Details
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- Definition The percentage of amortization of the carrying value of the debt instrument in the second and third fiscal year following the latest fiscal yea + References No definition available. + Details
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- Definition The percentage points added to the specified reference rate to compute the variable rate on the debt instrument, in addition to the percentage points added regardless of specified reference rate. + References No definition available. + Details
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- Definition Represents the maximum amount of the guarantees available through letters of credit. + References No definition available. + Details
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