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Subsequent Event Subsequent Event (Notes)	9 Months Ended
Subsequent Event Subsequent Event (Notes)	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Event On October 16, 2017, the Company redeemed all 2,000 of its outstanding Series A Preferred Shares for $50.4 million in cash, which reduced the restricted payments basket with respect to our 2025 Senior Notes and our 2021 Senior Notes by an equal amount. Refer to Note 8 of our Unaudited Condensed Consolidated Financial Statements for additional details.