Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Jan. 01, 2018
Jan. 01, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance $ 4,435,203 $ 2,042,306 $ 1,338,191      
Other comprehensive (loss) income before reclassifications 22,884 34,577 (35,390)      
Amounts reclassified from accumulated other comprehensive income (loss) (25,516) 1,774 2,645      
Total changes in other comprehensive (loss) income (2,632) 36,351 (32,745)      
Cumulative effect adjustment for adoption of new accounting guidance       $ (40,310) $ 9,229 $ 0
Balance 6,085,244 4,435,203 2,042,306      
Foreign Currency Translation Adjustment            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance (11,227) (21,031) (7,862)      
Other comprehensive (loss) income before reclassifications 10,332 8,855 (13,169)      
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0      
Total changes in other comprehensive (loss) income 10,332 8,855 (13,169)      
Cumulative effect adjustment for adoption of new accounting guidance         949  
Balance (895) (11,227) (21,031)      
On Available-For-Sale Debt Securities            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance (536) (594) (10)      
Other comprehensive (loss) income before reclassifications 1,039 58 (584)      
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0      
Total changes in other comprehensive (loss) income 1,039 58 (584)      
Cumulative effect adjustment for adoption of new accounting guidance         0  
Balance 503 (536) (594)      
On Equity Securities            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance 0 25,069 17,531      
Other comprehensive (loss) income before reclassifications 0 0 7,538      
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0      
Total changes in other comprehensive (loss) income 0 0 7,538      
Cumulative effect adjustment for adoption of new accounting guidance         (25,069)  
Balance 0 0 25,069      
On Foreign Currency Forward Contracts            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance 12,422 (15,016) 11,514      
Other comprehensive (loss) income before reclassifications   25,664 (29,175)      
Amounts reclassified from accumulated other comprehensive income (loss)   1,774 2,645      
Total changes in other comprehensive (loss) income   27,438 (26,530)      
Cumulative effect adjustment for adoption of new accounting guidance         0  
Balance   12,422 (15,016)      
On Foreign Currency Forward Contracts            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Other comprehensive (loss) income before reclassifications 11,513          
Amounts reclassified from accumulated other comprehensive income (loss) (25,516)          
Total changes in other comprehensive (loss) income (14,003)          
Balance (1,581)          
AOCI Attributable to Parent            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Balance 659 (11,572) 21,173      
Total changes in other comprehensive (loss) income (2,632) 36,351 (32,745)      
Cumulative effect adjustment for adoption of new accounting guidance         $ (24,120)  
Balance $ (1,973) $ 659 $ (11,572)