Balance Sheet Details - Property and Equipment Net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Property and equipment net
Property and equipment, gross	$ 404,689	$ 332,622
Less: accumulated depreciation and amortization	(223,165)	(191,181)
Property and equipment, net	$ 181,524	141,441
Minimum [Member]
Property and equipment net
Property and equipment, useful life	2 years
Maximum [Member]
Property and equipment net
Property and equipment, useful life	20 years
Instrument sets [Member]
Property and equipment net
Property and equipment, useful life	4 years
Property and equipment, gross	$ 249,592	214,893
Machinery and equipment [Member]
Property and equipment net
Property and equipment, gross	$ 37,837	26,871
Machinery and equipment [Member] \| Minimum [Member]
Property and equipment net
Property and equipment, useful life	5 years
Machinery and equipment [Member] \| Maximum [Member]
Property and equipment net
Property and equipment, useful life	7 years
Computer equipment and software [Member]
Property and equipment net
Property and equipment, gross	$ 71,258	55,480
Computer equipment and software [Member] \| Minimum [Member]
Property and equipment net
Property and equipment, useful life	3 years
Computer equipment and software [Member] \| Maximum [Member]
Property and equipment net
Property and equipment, useful life	7 years
Leasehold improvements [Member]
Property and equipment net
Property and equipment, gross	$ 21,278	17,331
Leasehold improvements [Member] \| Minimum [Member]
Property and equipment net
Property and equipment, useful life	2 years
Leasehold improvements [Member] \| Maximum [Member]
Property and equipment net
Property and equipment, useful life	15 years
Furniture and fixtures [Member]
Property and equipment net
Property and equipment, gross	$ 7,625	5,884
Furniture and fixtures [Member] \| Minimum [Member]
Property and equipment net
Property and equipment, useful life	3 years
Furniture and fixtures [Member] \| Maximum [Member]
Property and equipment net
Property and equipment, useful life	7 years
Building and improvements [Member]
Property and equipment net
Property and equipment, gross	$ 16,558	10,875
Building and improvements [Member] \| Minimum [Member]
Property and equipment net
Property and equipment, useful life	10 years
Building and improvements [Member] \| Maximum [Member]
Property and equipment net
Property and equipment, useful life	20 years
Land [Member]
Property and equipment net
Property and equipment, gross	$ 541	$ 1,288

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.13)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(14))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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