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Share-Based Payments - Summary of Expected Restricted Common Stock and RSU Vesting Dates (Details)
Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 337,179
October 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 3,341
December 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 69,991
January 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 95,839
March 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,667
April 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 2,925
July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,740
July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 500
October 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,736
December 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 70,000
January 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,744
March 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,667
April 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,744
July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 500
October 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
December 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 70,009
January 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
April 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
Shares Vesting [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 39,677
Shares Vesting [Member] | October 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 2,925
Shares Vesting [Member] | December 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,664
Shares Vesting [Member] | January 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 2,504
Shares Vesting [Member] | March 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
Shares Vesting [Member] | April 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 2,508
Shares Vesting [Member] | July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,740
Shares Vesting [Member] | July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 500
Shares Vesting [Member] | October 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,736
Shares Vesting [Member] | December 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,668
Shares Vesting [Member] | January 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,744
Shares Vesting [Member] | March 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
Shares Vesting [Member] | April 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 1,744
Shares Vesting [Member] | July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
Shares Vesting [Member] | July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 500
Shares Vesting [Member] | October 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
Shares Vesting [Member] | December 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,668
Shares Vesting [Member] | January 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
Shares Vesting [Member] | April 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 944
RSU Vesting [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 297,502
RSU Vesting [Member] | October 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 416
RSU Vesting [Member] | December 2013 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 63,327
RSU Vesting [Member] | January 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 93,335
RSU Vesting [Member] | March 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,667
RSU Vesting [Member] | April 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 417
RSU Vesting [Member] | July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | July 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | October 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | December 2014 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 63,332
RSU Vesting [Member] | January 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | March 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 6,667
RSU Vesting [Member] | April 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | July 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | October 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | December 2015 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting 63,341
RSU Vesting [Member] | January 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting   
RSU Vesting [Member] | April 2016 [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Vesting