Expiration of Net Operating Loss Carry Forwards (Detail) - California $ in Thousands	Dec. 31, 2015 USD ($)
Operating Loss Carryforwards [Line Items]
2016	$ 116,600
2017	51,900
2018	140,600
2028 and beyond	$ 258,100

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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