Discontinued Operations - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current liabilities
Current liabilities held for sale	$ 23,697	$ 24,862
Trillium Software
ASSETS
Cash and cash equivalents	3,206	1,049
Accounts receivable, net	8,066	11,397
Prepaid expenses	1,844	1,640
Property, plant and equipment, net	6,293	5,777
Goodwill	149,273	149,273
Other current assets	271	265
Total current assets held for sale	168,953	169,401
Current liabilities
Accounts payable	1,702	1,774
Accrued payroll and related expenses	709	924
Deferred revenue and customer advances	19,954	21,186
Other current liabilities	1,332	978
Current liabilities held for sale	$ 23,697	$ 24,862