Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Accrual for loss contingency related to legal proceedings	$ 22,000	$ 123,770
Changes in the carrying amount of goodwill
Goodwill, balance beginning	27,388	55,876
Reduction due to sale of product line		(5,100)
Impairment of goodwill		(21,884)
Impact of foreign currency translation adjustments	(1,114)	(1,504)
Goodwill, balance ending	26,274	27,388
Solutions [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	2,943	2,943
Reduction due to sale of product line		0
Impairment of goodwill		0
Impact of foreign currency translation adjustments	0	0
Goodwill, balance ending	2,943	2,943
Software [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	24,445	25,949
Reduction due to sale of product line		0
Impairment of goodwill		0
Impact of foreign currency translation adjustments	(1,114)	(1,504)
Goodwill, balance ending	23,331	24,445
Systems [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	0	26,984
Reduction due to sale of product line		(5,100)
Impairment of goodwill		(21,884)
Impact of foreign currency translation adjustments	0	0
Goodwill, balance ending	$ 0	0
Solutions [Member]
Changes in the carrying amount of goodwill
Impairment of goodwill		$ (1,400)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

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