Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013
Business Acquisition [Line Items]
Goodwill	$ 67,122		$ 30,836
Noncontrolling interest of consolidated joint venture			0
Net purchase price	51,398	9,394
Matrix NAC
Business Acquisition [Line Items]
Current assets	84,404
Property, plant and equipment	11,094
Goodwill	36,311
Other intangible assets	24,009
Total assets acquired	155,818
Current liabilities	66,507
Deferred income taxes	558
Noncontrolling interest of consolidated joint venture	700
Net assets acquired	88,053
Cash acquired	36,655
Net purchase price	51,398
Pelichem
Business Acquisition [Line Items]
Current assets	1,112
Property, plant and equipment	4,299
Goodwill	2,247
Other intangible assets	1,853
Total assets acquired	9,511
Current liabilities	117
Net assets acquired	$ 9,394