INCOME TAXES - Deferred taxes (Details) - USD ($) $ in Thousands |
12 Months Ended |
|
|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Assets |
|
|
|
|
|
|
| Accrued liabilities |
|
|
|
|
$ 27,839
|
$ 28,390
|
| Capital loss carryforwards |
|
|
|
|
4,008
|
|
| Pension postretirement and deferred compensation |
|
|
|
|
38,218
|
38,183
|
| Corporate borrowings |
|
|
|
|
159
|
|
| Deferred revenue |
|
|
|
|
175,886
|
179,133
|
| Lease liabilities |
|
|
|
|
168,091
|
135,215
|
| Capital and financing lease obligations |
|
|
|
|
191,110
|
33,130
|
| Alternative minimum tax and other credit carryovers |
|
|
|
|
27,950
|
17,520
|
| Net operating loss carryforward |
|
|
|
|
343,416
|
184,256
|
| Total |
|
|
|
|
976,677
|
615,827
|
| Less: Valuation allowance |
$ (509)
|
$ (790)
|
$ (790)
|
$ (248,420)
|
(112,165)
|
(509)
|
| Net deferred income taxes |
|
|
|
|
864,512
|
615,318
|
| Liabilities |
|
|
|
|
|
|
| Tangible assets |
|
|
|
|
(374,171)
|
(131,793)
|
| Intangible assets |
|
|
|
|
(159,578)
|
(121,495)
|
| Receivables |
|
|
|
|
(4,879)
|
(5,264)
|
| Investments |
|
|
|
|
(256,401)
|
(230,568)
|
| Total deferred income taxes |
|
|
|
|
$ (795,029)
|
$ (489,120)
|
| Rollforward of the Company's valuation allowance for deferred tax assets |
|
|
|
|
|
|
| Balance at Beginning of Period |
509
|
790
|
|
248,420
|
|
|
| Additions Charged (Credited) to Expenses |
2,760
|
(281)
|
790
|
(265,600)
|
|
|
| Charged (Credited) to Goodwill |
108,896
|
|
|
11,088
|
|
|
| Charged (Credited) to Other Accounts |
|
|
|
$ 6,092
|
|
|
| Balance at End of Period |
$ 112,165
|
$ 509
|
$ 790
|
|
|
|