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Contract Assets (Details) - USD ($)	Jun. 30, 2018	Mar. 31, 2018
Short-term contract assets [Abstract]
Cores expected to be returned by customers	$ 16,542,000	$ 15,614,000
Long-term contract assets [Abstract]
Remanufactured cores held at customers locations	202,223,000	200,429,000
Long-term core inventory deposits	5,569,000	5,569,000
Total long-term contract assets	207,792,000	205,998,000
Total contract assets	$ 224,334,000	$ 221,612,000

X

- Definition

Represents the Remanufactured Core portion of stock adjustment returns and Used Cores returned by consumers to the Company's customers but not yet returned to the Company. These cores are recorded as contract assets until the Company physically receives them during its normal operation cycle, which is generally one year.

+ References

No definition available.

+ Details

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X

- Definition

Carrying amount of remanufactured cores the Company has purchased from its customers, which are held by the customers and remain on the customers' premises, classified as noncurrent.

+ References

No definition available.

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- Definition

Gross amount of remanufactured cores held at customers' locations as of the balance sheet date, classified as noncurrent.

+ References

No definition available.

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- Definition

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
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- Definition

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent.

+ References

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