XML 102 R83.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Deferred Tax Assets and Liabilities [Abstract]    
Non-current deferred tax liability $ 121,262 $ 86,657
Net deferred tax liability 121,262 86,657
Deferred tax assets    
Federal net operating loss carryforwards 102,806 110,350
State net operating loss carryforwards 55,478 45,096
Share-based compensation 15,127 14,226
Other 53,434 35,161
Gross deferred tax assets 226,845 204,833
Valuation allowance (39,516) (28,821)
Deferred tax assets, net of valuation allowance 187,329 176,012
Deferred tax liabilities    
Difference between book and tax basis of property and intangible assets 259,495 219,090
State tax liability 38,891 33,777
Other 10,205 9,802
Gross deferred tax liabilities 308,591 $ 262,669
State and Local Jurisdiction    
Deferred tax assets    
Federal net operating loss carryforwards 936,500  
Alternative Minimum Tax Credit Carryforward [Member] | Internal Revenue Service (IRS)    
Income Taxes [Line Items]    
Tax credit carryforwards $ 11,000