Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2013

Balance Sheet Details [Abstract]

Property and equipment net

	Useful Life	December 31,
		2013			2012
Instrument sets	3 to 4	$	171,454		$	159,960
Machinery and equipment	5 to 7	21,722			17,719
Computer equipment and software	3 to 7	46,896			37,690
Leasehold improvements	2 to 15	21,825			20,735
Furniture and fixtures	3 to 7	7,510			7,744
Building and improvements	10 to 20	7,371			7,195
Land	—	541			541
		277,319			251,584
Less: accumulated depreciation and amortization		(149,255		)	(126,461		)
		$	128,064		$	125,123

Goodwill and intangible assets

	Weighted- Average Amortization Period (in years)	Gross Amount		Accumulated Amortization			Intangible Assets, net
Intangible Assets Subject to Amortization:
Purchased technology:
Developed technology	10	$	55,178	$	(14,966	)	$	40,212
Manufacturing know-how and trade secrets	12	21,712		(7,996		)	13,716
Trade name and trademarks	11	9,500		(2,333		)	7,167
Customer relationships	9	39,330		(9,703		)	29,627
	10	$	125,720	$	(34,998	)	$	90,722
Intangible Assets Not Subject to Amortization:
In-process research and development							10,640
Goodwill							154,106
Total goodwill and intangible assets, net							$	255,468

	Weighted- Average Amortization Period (in years)	Gross Amount		Accumulated Amortization			Intangible Assets, net
Intangible Assets Subject to Amortization:
Purchased technology:
Developed technology	10	$	62,328	$	(21,359	)	$	40,969
Manufacturing know-how and trade secrets	12	21,997		(9,890		)	12,107
Trade name and trademarks	11	9,500		(3,317		)	6,183
Customer relationships	8	43,871		(19,784		)	24,087
	10	$	137,696	$	(54,350	)	$	83,346
Intangible Assets Not Subject to Amortization:
In-process research and development							10,640
Goodwill							154,944
Total goodwill and intangible assets, net							$	248,930

Future amortization expense related to intangible assets

2014	$	14,343
2015	13,254
2016	12,776
2017	10,423
2018	9,905
Thereafter through 2026	22,645
Total future amortization expense	$	83,346

Change to goodwill

	December 31,
	2013		2012
Balance at beginning of period	$	154,106	$	159,349
Impairment charge	—		(8,300		)
Additions recorded in connection with business acquisitions	764		2,827
Other	74		230
Balance at end of period	$	154,944	$	154,106

Accounts payable and accrued liabilities

	December 31,
	2013		2012
Accounts payable	$	14,281	$	9,040
Accrued expenses	19,078		20,880
Royalties payable	38,967		19,861
Distributor commissions payable	7,319		7,523
Non-income taxes payable	3,951		3,144
Other	2,461		1,600
	$	86,057	$	62,048

Other Long-Term Liabilities

	December 31,
	2013		2012
Deferred rent	$	12,883	$	13,340
Capital lease obligation, non-current	223		426
Contingent consideration, non-current	596		1,074
Other	1,142		359
	$	14,844	$	15,199