Cash, Restricted Cash, Cash Equivalents, And Available For Sale Investments

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Debt instrument maturity year and month.

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Organization and summary of significant accounting policies.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of cash paid for interest during the period.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

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Organization and Summary of Significant Accounting Policies - Additional Information (Detail)		3 Months Ended				9 Months Ended
	Oct. 05, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Sep. 30, 2014	Sep. 30, 2015 USD ($) Segment	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Organization And Summary Of Significant Accounting Policies [Line Items]
Cash and investments in marketable securities		$ 267,819,000				$ 267,819,000		$ 262,824,000
Senior secured notes, current portion		125,000,000				125,000,000		$ 0
Debt and capital lease obligation		132,200,000				132,200,000
Capital lease obligations		7,200,000				7,200,000
Interest paid						$ 16,095,000	$ 16,487,000
Number of business segments \| Segment						1
Asset impairment charges		$ 0	$ 0	$ 0
Effective income tax rate		34.00%			34.00%	34.00%	34.00%
Senior Notes [Member] \| 12% Senior Secured Notes Due July 2017 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Senior secured notes, interest rate		12.00%				12.00%
Senior secured notes, maturity date						Jul. 15, 2017
Senior Secured Notes, maturity year and month						2017-07
Subsequent Event [Member] \| Senior Notes [Member] \| 7.75% Senior Secured Notes Due October 2020 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Senior secured notes, issued	$ 250,000,000
Senior secured notes, interest rate	7.75%
Senior secured notes, maturity date	Oct. 05, 2020
Subsequent Event [Member] \| Senior Notes [Member] \| 12% Senior Secured Notes Due July 2017 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Senior secured notes, interest rate	12.00%
Repayment of senior secured notes	$ 125,000,000
Redemption premium	11,300,000
Interest paid	$ 4,500,000