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Summary of Significant Accounting Policies and Estimates (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Summary of Significant Accounting Policies and Estimates [Line Items]    
Assets, Current $ 2,202,955 $ 2,035,219
Total assets 4,414,929 4,141,492
Liabilities, Current 2,039,470 1,922,199
Variable Interest Entity, Primary Beneficiary [Member]    
Summary of Significant Accounting Policies and Estimates [Line Items]    
Assets, Current 12,849 19,049
Long-Lived Assets 11,022 31,783
Total assets 23,871 50,832
Liabilities, Current 8,257 16,374
Liabilities, Noncurrent 17,064 15,955
Liabilities $ 25,321 $ 32,329