Stockholders' Equity - Schedule of Repurchase Agreements (Details) - USD ($) shares in Thousands, $ in Thousands |
12 Months Ended | |||||||||||
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Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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Equity, Class of Treasury Stock [Line Items] | ||||||||||||
Common stock repurchased (in shares) | 524,222 | 739,016 | 520,258 | |||||||||
Common stock repurchased, value | $ 2,015,947 | $ 2,522,832 | $ 1,762,360 | |||||||||
Open Market And Privately Negotiated Repurchases [Member] | ||||||||||||
Equity, Class of Treasury Stock [Line Items] | ||||||||||||
Common stock repurchased (in shares) | [1] | 524,222 | 422,965 | 476,546 | ||||||||
Common stock repurchased, value | [1] | $ 2,015,947 | $ 1,426,428 | $ 1,602,360 | ||||||||
October 2013 Share Repurchase Program [Member] | Liberty Media [Member] | ||||||||||||
Equity, Class of Treasury Stock [Line Items] | ||||||||||||
Common stock repurchased (in shares) | [2] | 0 | 92,889 | 43,712 | ||||||||
Common stock repurchased, value | [2] | $ 0 | $ 340,000 | $ 160,000 | ||||||||
May 2014 ASR Agreement [Member] | ||||||||||||
Equity, Class of Treasury Stock [Line Items] | ||||||||||||
Common stock repurchased (in shares) | [3] | 0 | 151,846 | 0 | ||||||||
Common stock repurchased, value | [3] | $ 0 | $ 506,404 | $ 0 | ||||||||
August 2014 ASR Agreement [Member] | ||||||||||||
Equity, Class of Treasury Stock [Line Items] | ||||||||||||
Common stock repurchased (in shares) | [4] | 0 | 71,316 | 0 | ||||||||
Common stock repurchased, value | [4] | $ 0 | $ 250,000 | $ 0 | ||||||||
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