Discontinued Operations (Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Assets of discontinued operations:
Current assets of discontinued operations	$ 0	$ 44,065
Non-current assets of discontinued operations	0	56,239
Liabilities of discontinued operations:
Current liabilities of discontinued operations	0	20,924
Non-current liabilities of discontinued operations	0	720
Photovoltaics Business [Member]
Assets of discontinued operations:
Accounts receivable, net of allowance	0	17,827
Inventory	0	7,203
Prepaid expenses and other current assets	0	1,512
Current assets of discontinued operations	0	26,542
Property, plant and equipment, net	0	26,660
Goodwill	0	20,384
Other non-current assets, net	0	254
Non-current assets of discontinued operations	0	47,298
Total assets of discontinued operations	0	73,840
Allowance	0	0
Liabilities of discontinued operations:
Accounts payable	0	4,640
Accrued expenses and other current liabilities	0	5,398
Current liabilities of discontinued operations	0	10,038
Asset retirement obligations	0	720
Non-current liabilities of discontinued operations	0	720
Total liabilities of discontinued operations	0	10,758
Digital Products Business [Member]
Assets of discontinued operations:
Accounts receivable, net of allowance	0	14,268
Inventory	0	3,225
Prepaid expenses and other current assets	0	30
Current assets of discontinued operations	0	17,523
Property, plant and equipment, net	0	7,881
Other intangible assets, net	0	1,060
Non-current assets of discontinued operations	0	8,941
Total assets of discontinued operations	0	26,464
Allowance	0	17
Liabilities of discontinued operations:
Accounts payable	0	10,848
Accrued expenses and other current liabilities	0	38
Current liabilities of discontinued operations	$ 0	$ 10,886