XML 26 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2014
Fair Value Measurements [Abstract] |
Summary Of Assets And Liabilities Measured At Fair Value On Recurring Basis |
| Fair Value Measurements as of June 30, 2014
(in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total
Description |  |  |  |  |  |  |  |  |  |  |
Cash equivalents (a) | $ | 493,539 |  | $ | — |  | $ | — |  | $ | 493,539
| (a) |  | Cash equivalents include funds held in money market instruments and are reported at their current carrying value, which approximates fair value due to the short-term nature of these instruments and are included in cash and cash equivalents in the consolidated balance sheet.

X
- Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration