XML 52 R36.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Fair Value of Financial Instruments (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Fair Value [Abstract] |
Carrying Values and Fair Values of Debt Instruments | The carrying values and fair values of the Company’s debt instruments where the carrying values do not approximate their fair values as of September 30, 2018 and December 31, 2017, are as follows:
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Carrying Value at |  | Fair Value* at
﻿ |  | September 30, 2018 |  | December 31, 2017 |  | September 30, 2018 |  | December 31, 2017
﻿2018 Senior Notes |  | $ | - |  | $ | 50,000 |  | $ | - |  | $ | 50,223
﻿2019 Senior Notes |  | $ | 175,000 |  | $ | 175,000 |  | $ | 178,150 |  | $ | 182,547
﻿2021 Senior Notes |  | $ | 100,000 |  | $ | 100,000 |  | $ | 101,780 |  | $ | 104,985
﻿New 2021 Senior Notes |  | $ | 150,000 |  | $ | 150,000 |  | $ | 144,299 |  | $ | 146,855
﻿2022 Senior Notes |  | $ | 125,000 |  | $ | 125,000 |  | $ | 121,062 |  | $ | 124,532
﻿2023 Senior Notes |  | $ | 200,000 |  | $ | 200,000 |  | $ | 188,988 |  | $ | 194,660
﻿2024 Senior Notes |  | $ | 150,000 |  | $ | 150,000 |  | $ | 143,651 |  | $ | 149,133
﻿2025 Senior Notes |  | $ | 375,000 |  | $ | 375,000 |  | $ | 358,141 |  | $ | 375,311
﻿2026 Senior Notes |  | $ | 400,000 |  | $ | 400,000 |  | $ | 369,921 |  | $ | 388,760
﻿2027 Senior Notes |  | $ | 250,000 |  | $ | 250,000 |  | $ | 236,409 |  | $ | 250,029
______________________ *Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value is based on quotes of bonds with similar ratings in similar industries.

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611 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) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13467-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=75026489&loc=d3e13220-108610 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration