Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2014 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2016 USD ($) Customer shares	Dec. 31, 2015 USD ($) Customer shares
Summary Of Significant Accounting Policies [Line Items]
Sales rebates		$ 400,000		$ 100,000
Number of customers accounted for more than 10% of accounts receivable | Customer			0	0
Disbursement of pre-funded study costs		$ 92,500,000	$ 150,300,000	$ 114,400,000
Undistributed earnings of foreign subsidiaries			15,100,000	$ 10,400,000
Antidilutive securities excluded from computation of diluted EPS | shares		0		0
Fair value measurements transfers between level 1, level 2, or level 3		$ 0	0	$ 0
Prepaid expenses and other current assets			16,074,000	11,896,000
Other assets, noncurrent			4,903,000	3,927,000
Property Mortgage in Leuven, Belgium
Summary Of Significant Accounting Policies [Line Items]
Prepaid expenses and other current assets				700,000
Other assets, noncurrent				$ 700,000
Stock Options
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares		1,091,000		1,794,000
RSAs and RSUs
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares		302,000		660,000
Maximum
Summary Of Significant Accounting Policies [Line Items]
Sales rebates			$ 100,000
Antidilutive securities excluded from computation of diluted EPS | shares			1,000
Estimated useful life of intangible assets			15 years
Maximum | Computer Hardware Software Phone and Medical Imaging Equipment
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			5 years
Maximum | Furniture and Fixtures and Other Equipment
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			7 years
Maximum | Buildings
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			40 years
Maximum | Computer Software Developed Costs
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			3 years
Maximum | Stock Options
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares			0
Maximum | RSAs and RSUs
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares			0
Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets			17 months
Minimum | Computer Hardware Software Phone and Medical Imaging Equipment
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			3 years
Minimum | Furniture and Fixtures and Other Equipment
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			5 years
Minimum | Buildings
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of assets			30 years
Miscellaneous (Expense) Income, Net
Summary Of Significant Accounting Policies [Line Items]
Net loss on foreign currency transactions		$ (1,200,000)	$ (700,000)	$ (1,300,000)
Selling, General and Administrative
Summary Of Significant Accounting Policies [Line Items]
Advertisement expenses		$ 200,000	$ 600,000	$ 400,000
Predecessor
Summary Of Significant Accounting Policies [Line Items]
Sales rebates	$ 100,000
Disbursement of pre-funded study costs	$ 30,900,000
Antidilutive securities excluded from computation of diluted EPS | shares	0
Fair value measurements transfers between level 1, level 2, or level 3	$ 0
Predecessor | Stock Options
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares	0
Predecessor | RSAs and RSUs
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of diluted EPS | shares	237,000
Predecessor | Miscellaneous (Expense) Income, Net
Summary Of Significant Accounting Policies [Line Items]
Net loss on foreign currency transactions	$ (100,000)
Predecessor | Selling, General and Administrative
Summary Of Significant Accounting Policies [Line Items]
Advertisement expenses	$ 100,000