Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE (Schedule of Carrying Value and Fair Value of Financial Liabilities) (Details)

v2.4.1.9
FAIR VALUE (Schedule of Carrying Value and Fair Value of Financial Liabilities) (Details) (Convertible subordinated debt, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Mar. 31, 2014
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Carrying Value $ 203,735us-gaap_LongTermDebt $ 203,735us-gaap_LongTermDebt
Level 2 fair value measurements    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Fair Value $ 219,820us-gaap_LongTermDebtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
$ 203,820us-gaap_LongTermDebtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember