The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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Period Type:	duration

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

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Period Type:	duration

- Definition

The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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

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- Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Balance Type:	credit
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Debt and Capital Lease Obligations (VM Convertible Notes) (Details) (USD $)		6 Months Ended						6 Months Ended	1 Months Ended	6 Months Ended		1 Months Ended	6 Months Ended		1 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 VM Convertible Notes [Member]	Jun. 07, 2013 VM Convertible Notes [Member]	Apr. 30, 2008 VM Convertible Notes [Member]	Jun. 07, 2013 Debt Component [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Equity Component [Member] VM Convertible Notes [Member]	Jun. 07, 2013 Equity Component [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Exchange Per $1000 Principal Amount [Member] VM Convertible Notes [Member]	Jul. 09, 2013 Make-Whole Exchange Period [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Class A Ordinary Shares [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Class A Ordinary Shares [Member] Exchange Per $1000 Principal Amount [Member] VM Convertible Notes [Member]	Jul. 09, 2013 Class A Ordinary Shares [Member] Make-Whole Exchange Period [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Class C Ordinary Shares [Member] VM Convertible Notes [Member]	Jun. 30, 2013 Class C Ordinary Shares [Member] Exchange Per $1000 Principal Amount [Member] VM Convertible Notes [Member]	Jul. 09, 2013 Class C Ordinary Shares [Member] Make-Whole Exchange Period [Member] VM Convertible Notes [Member]	Jul. 31, 2013 Subsequent Event [Member] VM Convertible Notes [Member]	Jul. 31, 2013 Subsequent Event [Member] Class A Ordinary Shares [Member] VM Convertible Notes [Member]	Jul. 31, 2013 Subsequent Event [Member] Class C Ordinary Shares [Member] VM Convertible Notes [Member]
Debt Instrument [Line Items]
Outstanding principal amount		$ 54,800,000		$ 1,000,000,000
Interest rate	5.25%			6.50%
Fair value of debt		102,900,000	2,716,800,000		1,056,800,000	903,300,000	1,660,000,000
Debt conversion amount		800,400,000						910.51	937.37									84,600,000
Debt conversion shares										11,800,000	13.4339	13.8302	8,800,000	10.0312	10.3271		1,200,000	900,000
Debt conversion, principal amount		$ 853,900,000						$ 1,000	$ 1,000							$ 90,300,000