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Goodwill and Other Intangible Assets (Schedule of Intangible Assets and Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Other intangible assets |  |  |
Gross amount | $ 148,395 | $ 58,399 |
Accumulated impairment losses and amortization | (65,495) | (43,424) |
Intangible Assets, Net, Excluding Goodwill [Roll Forward] |  |  |
Other intangible assets, Net, Beginning of Period | 14,975 |  |
Other intangible assets, Net, End of Period | 82,900 | 14,975 |
Intangible Assets, Net, Including Goodwill [Roll Forward] |  |  |
Goodwill and Other intangible assets, Net, Beginning of Period | 7,902 |  |
Goodwill and Other intangible assets, Net, End of Period | 265,154 | 7,902 |
Excluding Equity Method Investments |  |  |
Goodwill |  |  |
Goodwill, Gross amount | 199,889 | 8,160 | $ 8,160
Accumulated impairment losses and amortization | (2,299) | (2,299) | (2,299)
Goodwill [Roll Forward] |  |  |
Goodwill, Net, Beginning of Period | 5,861 | 5,861 |
Acquired during the year | 191,729 |  |
Goodwill, Net, End of Period | 197,590 | 5,861 |
Other intangible assets |  |  |
Gross amount | 96,599 | 12,999 | 12,999
Accumulated impairment losses and amortization | (29,035) | (10,958) | (10,749)
Intangible Assets, Net, Excluding Goodwill [Roll Forward] |  |  |
Other intangible assets, Net, Beginning of Period | 2,041 | 2,250 |
Acquired during the year | 83,600 |  |
Amortization | (18,077) | (209) |
Other intangible assets, Net, End of Period | 67,564 | 2,041 |
Goodwill and Other intangible assets, Total |  |  |
Gross amount, Beginning of Period | 296,488 | 21,159 | 21,159
Accumulated impairment losses and amortization, Beginning of Period | (31,334) | (13,257) | $ (13,048)
Intangible Assets, Net, Including Goodwill [Roll Forward] |  |  |
Goodwill and Other intangible assets, Net, Beginning of Period | 7,902 | 8,111 |
Acquired during the year | 275,329 |  |
Amortization | (18,077) | (209) |
Goodwill and Other intangible assets, Net, End of Period | $ 265,154 | $ 7,902 |

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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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