Discontinued Operations and Deconsolidation of Fenco (Details) (USD $)	3 Months Ended				12 Months Ended			2 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	May 31, 2013	May 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations	$ 0	$ 0	$ 0	$ 100,877,000	$ 0	$ 100,877,000	$ (106,069,000)
Fenco [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from deconsolidation of Fenco								118,095,000
Income tax benefit from discontinued operations								1,374,000
Loss in connection with guarantee of obligations to Fenco suppliers								20,464,000
Income tax benefit from discontinued operations related to guarantee of obligations to certain Fenco suppliers								9,156,000
Net sales								14,140,000
Operating losses								$ 5,910,000
Fapco [Member]
Business Acquisition [Line Items]
Direct ownership interest acquired (in hundredths)									1.00%
FAPL's ownership interest prior to acquisition (in hundredths)									99.00%
Combined direct and indirect ownership interest subsequent to acquisition (in hundredths)									100.00%