XML 34 R17.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements (Table) | 9 Months Ended
--- | ---
Sep. 30, 2014
Fair Value Disclosures |
Fair value measurements |
|  | Level within the Fair Value Hierarchy |  | September 30, 2014 |  | December 31, 2013
|  |  | Book Value |  |  | Fair Value |  | Book Value |  | Fair Value
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 1 |  | $ | 273,798 |  | $ | 273,798 |  | $ | 342,065 |  | $ | 342,065
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |
| U.S. Treasury Notes | 1 |  |  | 40,014 |  |  | 40,014 |  |  | 50,104 |  |  | 50,104
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |
| 6.95% Senior Notes | 1 |  |  | 342,000 |  |  | 346,104 |  |  | 342,000 |  |  | 309,852
| 6.7% Senior Notes | 2 |  |  | 532,652 |  |  | 535,254 |  |  | 532,449 |  |  | 507,697

X
- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a,b,bb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=36462937&loc=SL7498348-110258 Reference 4: 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=36462937&loc=d3e19190-110258 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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