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Debt (Tables) | 3 Months Ended
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Mar. 31, 2018
Debt Disclosure [Abstract] |
Summary of Components of Long-Term Borrowings and Capital Lease Obligations | The following table summarizes the components of Long-term borrowings and capital lease obligations:
(in millions) | March 31, 2018 |  | December 31, 2017
Amended 2016 Credit Agreement (a) | $ | 266.5 |  |  | $ | 277.0 |
Capital lease obligations | 0.8 |  |  | 0.7 |
Total long-term borrowings and capital lease obligations, including current portion | 267.3 |  |  | 277.7 |
Less: Current capital lease obligations | 0.3 |  |  | 0.3 |
Total long-term borrowings and capital lease obligations | $ | 267.0 |  |  | $ | 277.4 |
(a) | Defined as the Amended and Restated Credit Agreement, dated January 27, 2016, as amended on June 2, 2017.
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The following table summarizes the carrying amounts and estimated fair values of the Company’s long-term borrowings:
| March 31, 2018 |  | December 31, 2017
(in millions) | Notional Amount |  | Fair Value |  | Notional Amount |  | Fair Value
Long-term borrowings (a) | $ | 267.3 |  |  | $ | 267.3 |  |  | $ | 277.7 |  |  | $ | 277.7 |
(a) | Long-term borrowings includes current portions of long-term debt and current portions of capital lease obligations of $0.3 million and $0.3 million as of March 31, 2018 and December 31, 2017, respectively.

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + 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 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 4: 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.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: 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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 9: 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 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644 + Details
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