Summary of Significant Accounting Policies - Consolidated VIEs (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Current assets: | ||||||
Cash and cash equivalents | $ 145,115 | $ 115,652 | ||||
Accounts receivable, net | 547,285 | 562,943 | ||||
Spectrum asset | 52,002 | 305,764 | ||||
Prepaid expenses and other current assets | 22,673 | 71,859 | ||||
Other current assets | 22,673 | 71,859 | ||||
Total current assets | 767,075 | 1,056,218 | ||||
Property and equipment, net | 731,538 | 734,138 | ||||
Goodwill | 2,167,954 | 2,142,846 | $ 473,304 | |||
FCC licenses | 1,778,268 | 1,767,638 | $ 542,524 | |||
Other intangible assets, net | 1,491,923 | 1,581,626 | ||||
Other noncurrent assets, net | 125,272 | 199,181 | ||||
Total assets | [1] | 7,062,030 | 7,481,647 | |||
Current liabilities: | ||||||
Current portion of debt | 96,093 | 92,808 | ||||
Interest payable | 32,047 | 39,563 | ||||
Liability to surrender spectrum asset | 52,002 | 314,087 | ||||
Other current liabilities | 12,352 | 17,169 | ||||
Total current liabilities | 404,172 | 670,703 | ||||
Debt | 3,884,910 | 4,269,652 | ||||
Other noncurrent liabilities | 270,084 | 340,541 | ||||
Total liabilities | [1] | 5,193,046 | 5,900,337 | |||
Non Guarantor VIEs [Member] | ||||||
Current assets: | ||||||
Spectrum asset | 26,695 | |||||
Other current assets | 20,898 | 22,038 | ||||
Total current assets | 20,898 | 48,733 | ||||
Property and equipment, net | 10,994 | 7,517 | ||||
Goodwill | 121,600 | 130,362 | ||||
FCC licenses | 157,658 | 151,808 | ||||
Other intangible assets, net | 75,513 | 81,916 | ||||
Other noncurrent assets, net | 3,652 | 6,543 | ||||
Total assets | 390,315 | 426,879 | ||||
Current liabilities: | ||||||
Liability to surrender spectrum asset | 27,347 | |||||
Other current liabilities | 17,594 | 24,146 | ||||
Total current liabilities | 17,594 | 51,493 | ||||
Noncurrent liabilities | 27,542 | 30,339 | ||||
Total liabilities | 45,136 | 81,832 | ||||
Consolidated VIEs [Member] | ||||||
Current assets: | ||||||
Cash and cash equivalents | 19,060 | 17,180 | ||||
Accounts receivable, net | 22,725 | 24,407 | ||||
Spectrum asset | 26,695 | |||||
Prepaid expenses and other current assets | 4,423 | 6,762 | ||||
Total current assets | 46,208 | 75,044 | ||||
Property and equipment, net | 30,861 | 25,971 | ||||
Goodwill | 154,787 | 163,549 | ||||
FCC licenses | 157,658 | 151,808 | ||||
Other intangible assets, net | 89,225 | 97,757 | ||||
Other noncurrent assets, net | 8,073 | 9,443 | ||||
Total assets | 486,812 | 523,572 | ||||
Current liabilities: | ||||||
Current portion of debt | 54,616 | 56,565 | ||||
Interest payable | 345 | 994 | ||||
Liability to surrender spectrum asset | 27,347 | |||||
Other current liabilities | 17,594 | 24,146 | ||||
Total current liabilities | 72,555 | 109,052 | ||||
Debt | 243,717 | 245,523 | ||||
Other noncurrent liabilities | 27,542 | 30,594 | ||||
Total liabilities | $ 343,814 | $ 385,169 | ||||
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