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Balance Sheet Details - Summary of Accrued Warranty Obligations (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Movement in Standard Product Warranty Accrual [Roll Forward] |  |
Warranty liability at beginning of period | $ 1,196 us-gaap_ProductWarrantyAccrual | $ 2,244 us-gaap_ProductWarrantyAccrual
Additions charged to operations | 8 us-gaap_ProductWarrantyAccrualWarrantiesIssued | 405 us-gaap_ProductWarrantyAccrualWarrantiesIssued
Deductions from liability | (353)us-gaap_ProductWarrantyAccrualPayments | (1,282)us-gaap_ProductWarrantyAccrualPayments
Warranty liability at end of period | $ 851 us-gaap_ProductWarrantyAccrual | $ 1,367 us-gaap_ProductWarrantyAccrual
Minimum |  |
Movement in Standard Product Warranty Accrual [Roll Forward] |  |
Warranty accrual period | 1 year |
Maximum |  |
Movement in Standard Product Warranty Accrual [Roll Forward] |  |
Warranty accrual period | 3 years |

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(5)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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