Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 20
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-Paragraph 3
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Name:	us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Derivatives and Hedging Activities (Schedule of Effects of Interest Rate Swaps on the Consolidated Balance Sheets) (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Qualifying Hedges [Member] \| Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap agreements in a fair value liability position	$ 42,698
Non-Qualifying Hedging [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap agreements in a fair value asset position	47,583
Non-Qualifying Hedging [Member] \| Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap agreements in a fair value liability position	$ 47,583