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Stockholders' Equity - Discussion of Warrants (Details) - USD ($)
$ / shares in Units, $ in Millions
May 20, 2015
Mar. 31, 2017
Mar. 31, 2016
Class of Warrant or Right [Line Items]      
Dividend declared (in dollars per share)   $ 0.12 $ 0.11
Common Stock      
Class of Warrant or Right [Line Items]      
Potential repurchase   350,767  
Redemption of common stock warrant $ 1.2    
Maximum number of shares callable by warrants   19,963