Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Long-term Purchase Commitment [Line Items]  
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months $ 6,542
Unrecorded Unconditional Purchase Obligation 6,542
Operating Leases, Future Minimum Payments Due, Next Twelve Months 2,608
Operating Leases, Future Minimum Payments, Due in Two Years 2,111
Operating Leases, Future Minimum Payments, Due in Three Years 2,131
Operating Leases, Future Minimum Payments, Due in Four Years 2,152
Operating Leases, Future Minimum Payments, Due in Five Years 1,076
Operating Leases, Future Minimum Payments Due 10,078
Contractual Obligation, Due in Next Twelve Months 9,150
Contractual Obligation, Due in Second Year 2,111
Contractual Obligation, Due in Third Year 2,131
Purchase Obligation, Due in Fourth Year 2,152
Purchase Obligation, Due in Fifth Year 1,076
Purchase Obligation $ 16,620