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Restatement of Previously Issued Consolidated Financial Statements - Statements of Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |
Net revenues |  | $ 118,990 | $ 121,101 | $ 205,087 | $ 199,347
Costs and expenses: |  |  |  |  |
Cost of revenues | [1] | 47,755 | 48,180 | 93,810 | 94,331
Research and development |  | 20,819 | 28,047 | 46,308 | 53,874
Selling, general and administrative |  | 29,353 | 29,880 | 68,168 | 55,794
Net change in contingent consideration obligation |  | 0 | 3,110 | 0 | 3,115
Restructuring charges |  | 6,405 | 1,139 | 9,403 | 4,049
Depreciation and amortization |  | 23,552 | 24,093 | 47,639 | 46,875
Total costs and expenses |  | 127,884 | 134,449 | 265,328 | 258,038
Loss from continuing operations |  | (8,894) | (13,348) | (60,241) | (58,691)
Interest income |  | 3,026 | 591 | 5,883 | 1,221
Interest expense |  | (11,844) | (1,834) | (22,461) | (3,410)
Other expense, net |  | (1,556) | 668 | 2,630 | 287
Loss from continuing operations, before taxes |  | (19,035) | (13,923) | (73,208) | (60,593)
Benefit for income taxes |  | (3,573) | (370) | 5,148 | 15,150
Net loss from continuing operations |  | (22,608) | (14,293) | (68,060) | (45,443)
(Loss) Income from discontinued operations, net of taxes | [2] | (6,775) | 18,985 | (22,909) | 17,799
Net (loss) income |  | (29,383) | 4,692 | (90,969) | (27,644)
Net loss attributable to redeemable noncontrolling interests |  | (2,815) | (3,140) | (5,704) | (6,147)
Net loss attributable to Synchronoss |  | $ (26,568) | $ 7,832 | $ (85,265) | $ (21,497)
Basic: |  |  |  |  |
Continuing operations (usd per share) |  | $ (0.44) | $ (0.26) | $ (1.40) | $ (0.90)
Discontinued operations (usd per share) | [2] | (0.16) | 0.44 | (0.52) | 0.41
Basic (usd per share) |  | (0.60) | 0.18 | (1.92) | (0.49)
Diluted: |  |  |  |  |
Continuing operations (usd per share) |  | (0.44) | (0.26) | (1.40) | (0.90)
Discontinued operations (usd per share) | [2] | (0.16) | 0.44 | (0.52) | 0.41
Diluted (usd per share) |  | $ (0.60) | $ 0.18 | $ (1.92) | $ (0.49)
Weighted-average common shares outstanding: |  |  |  |  |
Basic (in shares) |  | 44,618 | 43,450 | 44,416 | 43,430
Diluted (in shares) |  | 44,618 | 43,450 | 44,416 | 43,430
As Previously Reported |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |
Net revenues |  |  | $ 118,255 |  | $ 222,474
Costs and expenses: |  |  |  |  |
Cost of revenues |  |  | 48,467 |  | 94,915
Research and development |  |  | 26,170 |  | 50,267
Selling, general and administrative |  |  | 29,952 |  | 56,875
Net change in contingent consideration obligation |  |  | 6,386 |  | 6,727
Restructuring charges |  |  | 1,139 |  | 4,049
Depreciation and amortization |  |  | 25,262 |  | 49,317
Total costs and expenses |  |  | 137,376 |  | 262,150
Loss from continuing operations |  |  | (19,121) |  | (39,676)
Interest income |  |  | 591 |  | 1,221
Interest expense |  |  | (1,834) |  | (3,410)
Other expense, net |  |  | 865 |  | (19)
Loss from continuing operations, before taxes |  |  | (19,499) |  | (41,884)
Benefit for income taxes |  |  | 2,074 |  | 2,435
Net loss from continuing operations |  |  | (17,425) |  | (39,449)
(Loss) Income from discontinued operations, net of taxes |  |  | 10,122 |  | 21,063
Net (loss) income |  |  | (7,303) |  | (18,386)
Net loss attributable to redeemable noncontrolling interests |  |  | (2,864) |  | (5,993)
Net loss attributable to Synchronoss |  |  | $ (4,439) |  | $ (12,393)
Basic: |  |  |  |  |
Continuing operations (usd per share) |  |  | $ (0.34) |  | $ (0.77)
Discontinued operations (usd per share) |  |  | 0.24 |  | 0.48
Basic (usd per share) |  |  | (0.10) |  | (0.29)
Diluted: |  |  |  |  |
Continuing operations (usd per share) |  |  | (0.34) |  | (0.77)
Discontinued operations (usd per share) |  |  | 0.24 |  | 0.48
Diluted (usd per share) |  |  | $ (0.10) |  | $ (0.29)
Weighted-average common shares outstanding: |  |  |  |  |
Basic (in shares) |  |  | 43,450 |  | 43,449
Diluted (in shares) |  |  | 43,450 |  | 43,449
Revenue - Hosting | Adjustments |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |
Net revenues |  |  | $ (12,840) |  | $ (10,721)
Costs and expenses: |  |  |  |  |
Selling, general and administrative |  |  | 153 |  | 153
Total costs and expenses |  |  | 153 |  | 153
Loss from continuing operations |  |  | (12,993) |  | (10,874)
Loss from continuing operations, before taxes |  |  | (12,993) |  | (10,874)
Net loss from continuing operations |  |  | (12,993) |  | (10,874)
Net (loss) income |  |  | (12,993) |  | (10,874)
Net loss attributable to Synchronoss |  |  | (12,993) |  | (10,874)
Acquisitions & Divestiture | Adjustments |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |
Net revenues |  |  | (525) |  | (10,531)
Costs and expenses: |  |  |  |  |
Cost of revenues |  |  | (171) |  | (172)
Selling, general and administrative |  |  | 296 |  | 380
Net change in contingent consideration obligation |  |  | (3,276) |  | (3,612)
Depreciation and amortization |  |  | (1,111) |  | (2,222)
Total costs and expenses |  |  | (4,262) |  | (5,626)
Loss from continuing operations |  |  | 3,737 |  | (4,905)
Loss from continuing operations, before taxes |  |  | 3,737 |  | (4,905)
Net loss from continuing operations |  |  | 3,737 |  | (4,905)
(Loss) Income from discontinued operations, net of taxes |  |  |  |  | 0
Net (loss) income |  |  | 3,737 |  | (4,905)
Net loss attributable to Synchronoss |  |  | 3,737 |  | (4,905)
Revenue - Evidence of Arrangement and Other Revenue | Adjustments |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |
Net revenues |  |  | 16,211 |  | (1,875)
Costs and expenses: |  |  |  |  |
Selling, general and administrative |  |  | (472) |  | (472)
Total costs and expenses |  |  | (472) |  | (472)
Loss from continuing operations |  |  | 16,683 |  | (1,403)
Other expense, net |  |  | (197) |  | 306
Loss from continuing operations, before taxes |  |  | 16,486 |  | (1,097)
Net loss from continuing operations |  |  | 16,486 |  | (1,097)
(Loss) Income from discontinued operations, net of taxes |  |  | (1,188) |  | (3,299)
Net (loss) income |  |  | 15,298 |  | (4,396)
Net loss attributable to Synchronoss |  |  | 15,298 |  | (4,396)
Capitalized Software and Other | Adjustments |  |  |  |  |
Costs and expenses: |  |  |  |  |
Cost of revenues |  |  | (116) |  | (412)
Research and development |  |  | 1,877 |  | 3,607
Selling, general and administrative |  |  | (49) |  | (1,142)
Depreciation and amortization |  |  | (58) |  | (220)
Total costs and expenses |  |  | 1,654 |  | 1,833
Loss from continuing operations |  |  | (1,654) |  | (1,833)
Loss from continuing operations, before taxes |  |  | (1,654) |  | (1,833)
Net loss from continuing operations |  |  | (1,654) |  | (1,833)
(Loss) Income from discontinued operations, net of taxes |  |  | 1 |  | 1
Net (loss) income |  |  | (1,653) |  | (1,832)
Net loss attributable to redeemable noncontrolling interests |  |  | (276) |  | (154)
Net loss attributable to Synchronoss |  |  | (1,377) |  | (1,678)
Income Taxes | Adjustments |  |  |  |  |
Costs and expenses: |  |  |  |  |
Benefit for income taxes |  |  | (2,444) |  | 12,715
Net loss from continuing operations |  |  | (2,444) |  | 12,715
(Loss) Income from discontinued operations, net of taxes |  |  | 10,050 |  | 34
Net (loss) income |  |  | 7,606 |  | 12,749
Net loss attributable to Synchronoss |  |  | $ 7,606 |  | $ 12,749
[1] | Cost of revenues excludes depreciation and amortization which is shown separately.
[2] | See Note 4 -Acquisitions and Divestitures for transactions classified as held for sale.

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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