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Related Party and Affiliated Company Transactions	3 Months Ended
Related Party and Affiliated Company Transactions	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party and Affiliated Company Transactions	Related Party and Affiliated Company Transactions There have been no significant changes to the other related party transactions as described in Note 23 to the consolidated financial statements in our 2018 Annual Report on Form 10-K.