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Equity Equity (HPU Repurchase) (Details)
$ / shares in Units, $ in Millions
Aug. 13, 2015
USD ($)
$ / shares
shares
Class of Stock [Line Items]  
HPUs outstanding | shares 14,888
Common stock equivalent underlying HPUs | shares 2,800,000
Cash exchange rate for CSE underlying HPU | $ / shares $ 9.30
Common stock exchange rate for CSE underlying HPU 0.7
HPU cash value acquired | $ $ 9.8
New shares issued (in shares) | shares 1,200,000.0
Stock issued | $ $ 15.2
High performance units, transaction value | $ $ 9.8
HPU's  
Class of Stock [Line Items]  
Percentage of holders with binding commitments to tender, cash redemption 37.00%
Percentage of holders with binding commitments to tender 63.00%