Annual report pursuant to Section 13 and 15(d)

Income Taxes - Unrecognized Tax Benefits (Details)

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Income Taxes - Unrecognized Tax Benefits (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Income Tax Disclosure [Abstract]      
Proceeds from Income Tax Refunds $ (2,004) $ (207) $ (512)
Tax benefit from amounts determined not to be payable to predecessor owners 575 0 0
Reserve for uncertain income taxes, beginning of period 1,651 1,509  
Additions based on tax positions related to the current year   0  
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions (944) 0  
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities (80) 0  
Interest and penalties on prior reserves 60 142  
Reserve for uncertain income taxes, end of period $ 854 $ 1,651 $ 1,509