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Derivative Instruments and Hedging Activities (Interest Rate Swap Agreements) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 24, 2018 | Jul. 31, 2018 | Jun. 25, 2018 | May 23, 2018
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Interest rate swap agreements |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount | $ 1,700.0 | $ 1,700.0 |  | $ 300.0 | $ 200.0 | $ 1,000.0
Fixed Rate Paid |  |  |  | 2.885% | 2.723% | 2.915%
Interest rate swap agreements - fixed rate paid 2.744% |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount |  |  | $ 50.0 |  |  |
Fixed Rate Paid |  |  | 2.744% |  |  |
Interest rate swap agreements - fixed rate paid 2.808% |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount |  |  | $ 100.0 |  |  |
Fixed Rate Paid |  |  | 2.808% |  |  |
Interest rate swap agreements - fixed rate paid 2.728% |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount |  |  | $ 50.0 |  |  |
Fixed Rate Paid |  |  | 2.728% |  |  |

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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- Details
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