Goodwill and Intangible Assets - Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, less held for sale	$ 44,574	$ 46,278
Less: held for sale	(925)	(1,704)
Gross Carrying Amount	43,649	44,574
Accumulated Amortization, less held for sale	(44,411)	(45,162)
Less: held for sale, accumulated amortization	925	1,704
Accumulated Amortization	(43,486)	(43,458)
Impairment	0	(906)
Net Carrying Amount	163	210
Customer Related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, less held for sale	38,874	38,874
Accumulated Amortization, less held for sale	(38,857)	(38,822)
Impairment	0	(17)
Net Carrying Amount	17	35
Marketing Related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, less held for sale	2,929	3,336
Accumulated Amortization, less held for sale	(2,883)	(3,143)
Impairment	0	(138)
Net Carrying Amount	46	55
Technology Related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, less held for sale	2,771	4,068
Accumulated Amortization, less held for sale	(2,671)	(3,197)
Impairment	0	(751)
Net Carrying Amount	$ 100	$ 120

Disposal Group, Including Discontinued Operation, Intangible Assets, Accumulated Amortization

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- Definition

Finite-Lived Intangible Assets, Accumulated Amortization, Excluding Intangible Assets Held for Sale

+ References

No definition available.

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- Definition

Finite-Lived Intangible Assets, Gross, Including Intangible Assets Held for Sale

+ References

No definition available.

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- Definition

Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e1107-107759

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

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