Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended				1 Months Ended	3 Months Ended	9 Months Ended
	Mar. 31, 2014	Mar. 31, 2014 Manistee, Michigan	Mar. 31, 2014 Woodville, Ohio	Aug. 31, 2013 Revolving Line Of Credit Expires In July 2013	Aug. 31, 2013 Revolving Line Of Credit Expires In August 2015	Mar. 31, 2014 Loan Due May 2016	Sep. 30, 2013 Loan Due May 2016	Dec. 31, 2013 Loan Due May 2016
Commitments and Contingencies [Line Items]
Guarantee of affiliate's obligations				$ 24,000,000
Line of credit maturity period					2015-08
Loan to affiliate							3,402,000
Loan to affiliate, due date						2016-05
Due from affiliate	$ 6,000,000					$ 2,773,000		$ 2,984,000
Percentage of employees represented in labor union	15.00%	100.00%	100.00%
Collective bargaining agreement expiry date			2014-06