Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Notes (Details)

v2.4.0.8
Fair Value Measurements - Notes (Details) (Notes, USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Estimate of Fair Value Measurement [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
2033 Senior Notes $ 69,759
Level 1 [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
2033 Senior Notes   
Level 2 [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
2033 Senior Notes   
Level 3 [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
2033 Senior Notes 69,759
Carrying Value [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
2033 Senior Notes $ 63,401