Annual report pursuant to Section 13 and 15(d)

Acquisitions Acquisitions (Details 2)

v2.4.0.8
Acquisitions Acquisitions (Details 2) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Apr. 02, 2013
Kentrox [Member]
Apr. 02, 2013
Scenario, Previously Reported [Member]
Kentrox [Member]
Apr. 02, 2013
Scenario, Adjustment [Member]
Kentrox [Member]
Business Acquisition [Line Items]            
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired       $ 2,355 $ 2,355 $ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory       5,045 5,045 0
Business Acquisition, Purchase Price Allocation, Current Assets Trade Accounts Receivable       4,325 4,260 65
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLandHeldForSaleAcquired       1,044 1,044 0
BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets       882 806 76
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       15,980 16,970 (990)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other       (2,963) (2,885) (78)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable       (3,393) (3,486) 93
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent (9,100)     (2,530) (780) (1,750)
Goodwill 30,697 0 801 10,555 7,971 2,584
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest       $ 31,300 $ 31,300 $ 0