Commitments and Contingencies - Schedule of Future Lease Cash Payments under the Build to Suit Lease (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Build-To-Suit Lease, Remainder of 2015	$ 1,852
Build-To-Suit Lease, 2016	2,538
Build-To-Suit Lease, 2017	2,614
Build-To-Suit Lease, 2018	2,692
Build-To-Suit Lease, 2019	2,773
Build-To-Suit Lease, 2020 and after	14,162
Build-To-Suit Lease, Future Minimum Payments	$ 26,631

Amount of future minimum payments under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing in the fifth fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing in the fourth fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing in the third fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing in the second fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing in the remainder of the fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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Amount of future minimum payments maturing after the fifth fiscal year following the latest fiscal year ended under build-to-suit lease.

No definition available.

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