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Debt - Amended Credit Agreement (Details) $ in Millions |  |  |  | 3 Months Ended
--- | --- | --- | --- | ---
Feb. 27, 2017 USD ($) | Jul. 24, 2015 USD ($) | Jul. 31, 2012 USD ($) | Mar. 31, 2018
Credit Agreement |  |  |  |
Debt |  |  |  |
Maximum borrowing capacity |  |  | $ 230.0 |
Term of debt instrument |  |  | 5 years |
Amount borrowed under the Amended Credit Agreement |  | $ 82.5 |  |
Revolving Credit Facility |  |  |  |
Debt |  |  |  |
Maximum borrowing capacity |  | $ 300.0 | $ 130.0 |
Term of debt instrument |  | 5 years |  |
Sublimit on letters of credit | $ 25.0 |  |  |
Sublimit on swingline loan | 10.0 |  |  |
Additional increase in borrowing capacity of the line of credit available at the entity's option | 200.0 |  |  |
Amended Credit Agreement |  |  |  |
Debt |  |  |  |
Repayment of credit facility amount | $ 72.5 |  |  |
Maximum leverage ratio |  |  |  | 3.00
Minimum fixed charge coverage ratio |  |  |  | 1.25
Revolving credit facility, other than swingline loans | Federal Funds |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 0.50%
Revolving credit facility, other than swingline loans | Eurodollar base rate |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 1.00%
Revolving credit facility, other than swingline loans | Eurodollar | Low end of range |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 1.25%
Revolving credit facility, other than swingline loans | Eurodollar | High end of range |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 2.00%
Term loan facility, revolving credit facility, swingline and other loans | Base rate | Low end of range |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 0.25%
Term loan facility, revolving credit facility, swingline and other loans | Base rate | High end of range |  |  |  |
Debt |  |  |  |
Interest rate added to the base rate (as a percent) |  |  |  | 1.00%
Term Loan Facility |  |  |  |
Debt |  |  |  |
Maximum borrowing capacity |  |  | $ 100.0 |

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- Definition Represents the amount that the borrowing capacity of the line of credit may be increased at the entity's option, subject to certain conditions, under the terms of the credit agreement. + References No definition available. + Details
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- Definition Represents the maximum ratio of total debt to earnings before interest expense, income taxes and noncash items (such as depreciation, depletion and amortization expense, unrealized gains and losses on commodity derivatives, ceiling test write-downs, and goodwill impairments) permitted under credit facilities' covenants. + References No definition available. + Details
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- Definition Represents the minimum ratio of earnings before interest expense, income taxes and noncash items (such as depreciation, depletion and amortization expense, unrealized gains and losses on commodity derivatives, ceiling test write-downs, and goodwill impairments) to debt payment permitted under credit facilities' covenants. + References No definition available. + 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 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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