Long-Term Debt (5.500% Senior Notes Due 2020) (Details) - USD ($) $ in Thousands |
6 Months Ended | ||
---|---|---|---|
Jul. 20, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
Debt Instrument [Line Items] | |||
Proceeds from issuance of Senior Notes | $ 2,835,000 | $ 820,000 | |
Senior Notes [Member] | 5.500% Senior Notes Due 2020 [Member] | |||
Debt Instrument [Line Items] | |||
Face amount | $ 600,000 | ||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | ||
Due date | Aug. 01, 2020 | ||
Liquidated damages in form of additional interest, percent | 0.25% | ||
Percentage of increase in additional interest after target date | 0.25% | ||
Liquidated damages accruing, aggregate percent, maximum | 1.00% | ||
Proceeds from issuance of Senior Notes | $ 592,500 |