Years Ended December 31, | |||||||||||
2013 | 2012 | 2011 | |||||||||
Supplemental disclosure of cash flow information: | |||||||||||
Interest paid | $ | 477,395 | $ | 504,494 | $ | 404,443 | |||||
Income taxes paid | 15,591 | 3,375 | 4,340 | ||||||||
Supplemental disclosure of non-cash investing and financing activities: | |||||||||||
Increase in liabilities for purchases of property and equipment | 56,279 | 58,638 | 27,094 | ||||||||
Conversion of 6.25% Redeemable Convertible Preferred Stock (note 11) | — | 305,180 | — | ||||||||
Assumption of WCP Securitized Notes | — | 336,273 | — | ||||||||