Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Schedule of Collaborative Arrangement Agreements [Line Items]
Provision for income taxes	$ 18,130,000	$ 30,131,000	$ 23,615,000	$ 30,430,000
Unrecognized tax benefits	400,000		400,000		$ 400,000
Income taxes, interest and penalties accrued	0		0
Income taxes, material interest or penalties related to uncertain tax positions			0		$ 0
Estimated reduction in unrecognized tax benefits in next fiscal year	400,000		400,000
Parion Sciences, Inc
Schedule of Collaborative Arrangement Agreements [Line Items]
Provision for income taxes	$ 17,500,000		$ 20,600,000