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Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |  | 0 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Jun. 30, 2013 | Dec. 21, 2013 Kvaerner NAC | Mar. 31, 2014 Kvaerner NAC | Dec. 31, 2012 Pelichem
Business Acquisition [Line Items] |  |  |  |  |  |
Current assets |  |  |  | $ 84,404 |  | $ 1,112
Property, plant and equipment |  |  |  | 11,377 |  | 4,299
Goodwill | 66,589 |  | 30,836 | 36,176 |  | 2,247
Other intangible assets |  |  |  | 24,009 |  | 1,853
Total assets acquired |  |  |  | 155,966 |  | 9,511
Current liabilities |  |  |  | 66,790 |  | 117
Deferred income taxes |  |  |  | 423 |  |
Noncontrolling interest of consolidated joint venture |  |  |  | 700 | 1,100 |
Net assets acquired |  |  |  | 88,053 |  | 9,394
Cash acquired |  |  |  | 36,655 |  |
Net purchase price | $ 51,398 | $ 9,394 |  | $ 51,398 |  |

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