v3.3.0.814
Accumulated Other Comprehensive Income - Reconciliation of Accumulated Other Comprehensive Income (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Beginning balance     $ (50,581,000)  
Ending balance $ (109,021,000)   (109,021,000)  
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests 46,018,000 $ 0 46,018,000 $ 0
Unrealized Gains and Losses on Available-for-Sale Securities [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Beginning balance (178,000) (207,000) (129,000) (433,000)
Other comprehensive income (loss) 99,000 (26,000) 50,000 200,000
Ending balance (79,000) (233,000) (79,000) (233,000)
Reclassified from accumulated other comprehensive income 0 0 0 0
Accumulated other comprehensive income (loss), tax 1,414,000 943,000 1,414,000 943,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests 0 0    
Foreign Currency Items [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Beginning balance (67,344,000) 6,344,000 (50,452,000) (15,062,000)
Other comprehensive income (loss) (32,490,000) (30,854,000)   (9,448,000)
Ending balance (108,942,000) (24,510,000) $ (108,942,000) $ (24,510,000)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests $ (9,108,000) $ 0