Accumulated Other Comprehensive Income (Notes)	6 Months Ended
Jun. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive LossAs a result of the June 2019 Acquisition, we recorded an accumulated other comprehensive loss related to pension and other post-retirement benefits provided by Explorer and Colonial to their employees. We are not a sponsor of these benefits plans. The June 2019 Acquisition is accounted for as a transaction between entities under common control on a prospective basis and we have recorded the acquisition on our unaudited consolidated balance sheet at SPLC's historical basis which included accumulated other comprehensive loss. Our assumption of the accumulated other comprehensive loss balance had no effect on our comprehensive income during the period as the balance was accumulated while under the ownership of SPLC.

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-URI http://asc.fasb.org/topic&trid=2134417

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