Annual report pursuant to Section 13 and 15(d)

Employee Benefits - (Details)

v2.4.0.6
Employee Benefits - (Details) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 11 Months Ended 12 Months Ended
Apr. 30, 2010
Mar. 31, 2011
Mar. 31, 2013
Mar. 31, 2012
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]        
Annual vesting percentage     100.00%  
Employer matching contribution, percent     50.00%  
Maximum annual contribution per employee, percent     6.00%  
Employer discretionary contribution, amount $ 125 $ 673 $ 1,458 $ 1,357
Incentive compensation paid 273 5,131 4,268 6,943
CHS Transactions [Member]
       
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]        
Bonuses Paid $ 3,545