Restatement and Revision of Previously Issued Consolidated Financial Statements (Details) (USD $)
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12 Months Ended | 12 Months Ended | ||||||||||||||
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Mar. 31, 2014
item
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Mar. 31, 2013
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Mar. 31, 2012
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Mar. 31, 2014
Maximum
item
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Mar. 31, 2014
Minimum
item
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Mar. 31, 2013
Restatement adjustment
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Mar. 31, 2012
Restatement adjustment
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Mar. 31, 2014
Proforma
item
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Mar. 31, 2012
Inventory Valuation Reserve
Restatement adjustment
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Mar. 31, 2011
Inventory Valuation Reserve
Restatement adjustment
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Mar. 31, 2011
Property Plant and Equipment Capitalization Threshold Convention
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Mar. 31, 2013
Property Plant and Equipment Capitalization Threshold Convention
Restatement adjustment
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Mar. 31, 2012
Property Plant and Equipment Capitalization Threshold Convention
Restatement adjustment
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Mar. 31, 2012
Settlement Accrual
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Mar. 31, 2012
Settlement Accrual
Restatement adjustment
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Mar. 31, 2011
Settlement Accrual
Restatement adjustment
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Cost of goods sold | $ 1,400,844,000 | $ 1,389,643,000 | $ 1,508,670,000 | $ (30,700,000) | $ 30,700,000 | $ 408,000 | $ (25,000) | |||||||||
Inventory valuation reserves and supplier liability | 30,700,000 | |||||||||||||||
Net income | 74,304,000 | (227,518,000) | 104,237,000 | 30,700,000 | (30,700,000) | (8,300,000) | (1,342,000) | 82,000 | ||||||||
Net income per share (in dollars per share) | $ 0.46 | $ (1.44) | $ 0.60 | $ (0.02) | $ 0.18 | $ 0.17 | $ (0.17) | |||||||||
Number of items on lists of financial items | 50 | 30 | ||||||||||||||
Number of historical items from lists recorded in an earlier period or different amount recorded | 9 | |||||||||||||||
Period relating to historical items from lists recorded in an earlier period or different amount recorded | 5 years | |||||||||||||||
Number of items on lists that were not addressed in a timely manner before correction | 2 | |||||||||||||||
Number of items not material individually or in aggregate to any of annual or interim periods reported and not being corrected | 6 | |||||||||||||||
Number of elements to restatement related to the revenue product | 2 | |||||||||||||||
Retained earnings | 976,292,000 | 966,924,000 | (8,300,000) | 7,034,000 | ||||||||||||
Operating expense | 651,883,000 | 961,671,000 | 693,535,000 | 1,300,000 | (100,000) | |||||||||||
Operating income (loss) | 75,986,000 | (252,037,000) | 113,998,000 | (1,300,000) | 100,000 | (1,300,000) | 1,300,000 | |||||||||
Legal accruals | $ 1,300,000 |