Debt Instrument, Convertible, Number Of Share

No definition available.

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- Definition

Write Off of Debt Discount

+ References

No definition available.

+ Details

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- Definition

Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 25
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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

+ References

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

+ Details

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	duration

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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- Definition

The cash outflow to reacquire common stock during the period.

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-Glossary Financing Activities
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+ Details

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Balance Type:	credit
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- Definition

The cash outflow to reacquire common and preferred stock.

+ References

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Name Regulation S-X (SX)
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-Section 04
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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

+ Details

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Convertible Senior Notes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended				12 Months Ended
	Nov. 01, 2014	Jan. 31, 2016	Jun. 30, 2014	Jul. 31, 2013	Nov. 30, 2009	Dec. 31, 2015	Dec. 31, 2014	Nov. 01, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Gain on debt extinguishment									$ 84
Debt discount									(2,802)
Payment for repurchase of common stock			$ 24,000			$ 13,193	$ 24,000
Repurchase of common stock under prepaid forward repurchase agreement, shares			3,112,840
Repayments of debt							39,000		61,000
4.50% Convertible senior notes (due 2014)
Debt Instrument [Line Items]
Long term debt, face amount					$ 100,000
Frequency of interest payment						Semi-annually
Debt instrument, maturity date					Nov. 01, 2014
Debt instrument, interest rate					4.50%
Debt discount					$ 13,700
Interest expenses associated with amortization of equity component						$ 0	$ 900		2,000
Debt issuance cost written off amount									600
Repurchase of related equity component									2,800
Debt discount written off amount									$ 2,200
Repayments of debt	$ 39,000
Debt instrument repurchase amount				$ 61,000
4.25% Convertible Senior Notes (due 2018)
Debt Instrument [Line Items]
Long term debt, face amount				$ 100,000
Frequency of interest payment						Semi-annually
Debt instrument, maturity date				Aug. 01, 2018
Debt instrument, interest rate				4.25%		4.25%	4.25%
Gain on debt extinguishment				$ 100
Conversion rate in share per $1000 principal amount of notes				114.3674
Debt instrument, conversion rate				$ 8.74
Net proceeds from debt instrument				$ 96,000
4.875% Convertible Senior Notes (due 2020)
Debt Instrument [Line Items]
Long term debt, face amount			$ 115,000
Frequency of interest payment						Semi-annually
Debt instrument, maturity date			Jun. 01, 2020
Debt instrument, interest rate			4.875%			4.875%	4.875%
Conversion rate in share per $1000 principal amount of notes			103.7613
Debt instrument, conversion rate			$ 9.64
Net proceeds from debt instrument			$ 110,400
Payment for repurchase of common stock			$ 24,000
Repurchase of common stock under prepaid forward repurchase agreement, shares			3,100,000
Repayments of debt								$ 39,000
4.875% Convertible Senior Notes (due 2020) \| Subsequent Event
Debt Instrument [Line Items]
Payment for repurchase of common stock		$ 2,000
Repayments of debt		$ 2,000