Company Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Summary of Inventories

Inventories consisted of the following, net of reserves of $0.7 million and $2.2 million at December 31, 2015 and 2014, respectively (in thousands):

	December 31,
	2015		2014
Raw materials	$	10,289	$	10,472
Work-in-process (materials, labor and overhead)	7,441		6,834
Finished goods (materials, labor and overhead)	8,658		7,457
Total inventories	$	26,388	$	24,763

Property, Plant and Equipment

Property, plant and equipment consisted of the following (in thousands):

	December 31,
	2015			2014
Equipment, furniture and fixtures	$	59,736		$	64,233
Building and improvements	33,048			32,074
Leased instruments	18,280			12,395
Land	1,080			1,080
Total property, plant and equipment, gross	112,144			109,782
Less: accumulated depreciation and amortization	(59,597		)	(60,556		)
Total property, plant and equipment, net	$	52,547		$	49,226

Summary of Intangible Assets

Goodwill and intangible assets consisted of the following (dollar amounts in thousands):

		December 31, 2015							December 31, 2014
Description	Weighted-average useful life (years)	Gross assets		Accumulated amortization			Net		Gross assets		Accumulated amortization			Net
Goodwill	Indefinite	$	84,179	$	(3,449	)	$	80,730	$	84,197	$	(3,449	)	$	80,748
Purchased technology	8.4	52,560		(34,911		)	17,649		51,870		(28,570		)	23,300
Customer relationships	7.6	7,171		(4,972		)	2,199		7,214		(3,978		)	3,236
In-process research and development	Indefinite	—		—			—		690		—			690
License agreements	10.6	5,512		(2,542		)	2,970		34,324		(30,050		)	4,274
Patent and trademark costs	12.3	10,530		(2,588		)	7,942		10,530		(1,725		)	8,805
Software development costs	5	2,913		(1,840		)	1,073		2,849		(1,264		)	1,585
Total goodwill and intangible assets		$	162,865	$	(50,302	)	$	112,563	$	191,674	$	(69,036	)	$	122,638

Summary of Expected Future Annual Amortization Expense

The expected future annual amortization expense of the Company’s intangible assets is as follows (in thousands):

For the years ending December 31,	Amortization expense
2016	$	9,288
2017	9,000
2018	3,430
2019	2,175
2020	1,796
Thereafter	6,144
Total	$	31,833

Schedule of Other Current Liabilities

Other current liabilities—Other current liabilities consisted of the following (in thousands):

	December 31,
	2015		2014
Customer incentives	$	4,030	$	4,729
Accrued research and development costs	773		990
Other	2,196		2,324
Total other current liabilities	$	6,999	$	8,043

Basic and Diluted EPS

The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2013 (in thousands, except per share amounts):

	2013
Basic net income per share:
Net income	$	7,390
Less: income allocated to participating securities	(17		)
Net income allocated to common stockholders	$	7,373
Weighted average common shares outstanding — basic	33,836
Net income per share — basic	$	0.22
Diluted net income per share:
Net income	$	7,390
Less: income allocated to participating securities	(16		)
Net income allocated to common stockholders	$	7,374
Weighted average common shares outstanding — basic	33,836
Dilutive securities	1,111
Weighted average common shares outstanding — diluted	34,947
Net income per share — diluted	$	0.21

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table presents the effect of the retrospective application of this change in accounting principle on the Company’s Consolidated Balance Sheets as of December 31, 2014:

Consolidated Balance Sheets (in thousands)	As Reported December 31, 2014		Effect of Change in Accounting Principle			After change in Accounting Principle
ASSETS
Current assets:
Prepaid expenses and other current assets	$	3,554	$	(640	)	$	2,914
Total current assets	275,121		(640		)	274,481
Other non-current assets	4,565		(3,499		)	1,066
Total assets	$	451,550	$	(4,139	)	$	447,411
LIABILITIES AND STOCKHOLDERS’ EQUITY
Long-term debt	142,097		(4,139		)	137,958
Total liabilities and stockholders’ equity	$	451,550	$	(4,139	)	$	447,411