Leases (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Leases [Abstract]
Building in progress - leased facility acquired under financing obligation	$ 10,700			$ 10,746	$ 0
Operating leases, rent expense, net		$ 1,900	$ 1,600	4,000	$ 2,900
Operating Leased Assets [Line Items]
Operating leases, future minimum payments due, remaining 2016		3,915		3,915
Operating leases, future minimum payments due, 2017		7,429		7,429
Operating leases, future minimum payments due, 2018		6,751		6,751
Operating leases, future minimum payments due, 2019		6,355		6,355
Operating leases, future minimum payments due, 2020		4,773		4,773
Operating leases, future minimum payments due, thereafter		14,151		14,151
Operating leases, future minimum payments due, gross		43,374		43,374
Operating leases, future minimum payments due, future minimum sublease rentals		(858)		(858)
Operating leases, rent expense, net of future minimum lease payments		42,516		42,516
Contractual obligation, future minimum payments due, remaining 2016		0		0
Contractual obligation, future minimum payments due, 2017		1,717		1,717
Contractual obligation, future minimum payments due, 2018		4,222		4,222
Contractual obligation, future minimum payments due, 2019		4,349		4,349
Contractual obligation, future minimum payments due, 2020		4,480		4,480
Contractual obligation, future minimum payments due, thereafter		27,605		27,605
Contractual obligation, future minimum payments due		$ 42,373		$ 42,373
Building
Operating Leased Assets [Line Items]
Property, plant and equipment, useful life				30 years