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Fair Value Measurements - Notes (Details) (Notes, USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
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|---|---|
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Estimate of Fair Value Measurement [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
| 2033 Senior Notes | $ 69,759 |
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Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
| 2033 Senior Notes | |
|
Level 2 [Member]
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|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
| 2033 Senior Notes | |
|
Level 3 [Member]
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|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
| 2033 Senior Notes | 69,759 |
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Carrying Value [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
| 2033 Senior Notes | $ 63,401 |