Represents an amount of cash commission paid to the broker.

No definition available.

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- Definition

The cash outflow for the extinguishment of convertible senior notes before its maturity and related incremental, external costs, including brokerage fees, and excluding interest.

+ References

No definition available.

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

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-Name Accounting Standards Codification
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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

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.

+ References

No definition available.

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Long-Term Debt (3.875% Convertible Senior Notes) - Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Jan. 31, 2015 $ / shares	Mar. 31, 2016 USD ($)	Sep. 30, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
Repurchase of convertible senior notes			$ 11,347
Unamortized debt discount and issuance costs			$ (10,004)	$ (13,821)
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible debt, conversion price \| $ / shares			$ 62.18
Convertible debt, conversion ratio			16.0833
Aggregate amount of debt repurchased		$ 13,010
Repurchase of convertible senior notes		11,347
Commission related to repurchases of convertible senior notes		81
Gain on extinguishment of debt		153
Unamortized debt discount and issuance costs		$ 1,591
Convertible Senior Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Cash dividends on common stock \| $ / shares	$ 0.275