Consolidated Statement of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Statement of Comprehensive Income [Abstract]    
Net income $ 99,554 $ 77,345
Other comprehensive income, net of tax    
Unrealized income (loss) on cash flow hedge 276 (143)
Comprehensive income 99,830 77,202
Less: Comprehensive income attributable to non-controlling interest 12,861 13,900
Comprehensive income attributable to the Company $ 86,969 $ 63,302