Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities - Amortized Cost and Fair Value (Details)

v3.19.3
Marketable Securities - Amortized Cost and Fair Value (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
investment
Jun. 30, 2019
USD ($)
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 1,161,952 $ 1,161,649
Gross Unrealized Gains 570 189
Gross Unrealized Losses (426) (1,232)
Fair Value 1,162,096 1,160,606
Add: Time deposits [1] 85,902 99,006
Marketable securities, Amortized Cost 763,030 724,449
Marketable securities, Gross Unrealized Gains 570 172
Marketable securities, Gross Unrealized Losses (426) (1,230)
Marketable securities, Fair value $ 763,174 723,391
Number of investments in an unrealized loss position | investment 158  
Cash and Cash Equivalents    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 484,824 536,206
Gross Unrealized Gains 0 17
Gross Unrealized Losses 0 (2)
Fair Value 484,824 536,221
Corporate debt securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 419,980 433,518
Gross Unrealized Gains 430 141
Gross Unrealized Losses (113) (582)
Fair Value 420,297 433,077
Money market funds and other    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 399,036 352,708
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value 399,036 352,708
Municipal securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 1,899 1,910
Gross Unrealized Gains 7 3
Gross Unrealized Losses 0 0
Fair Value 1,906 1,913
Sovereign securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 6,014 6,001
Gross Unrealized Gains 3 1
Gross Unrealized Losses (3) (8)
Fair Value 6,014 5,994
U.S. Government agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 104,391 159,454
Gross Unrealized Gains 10 5
Gross Unrealized Losses (72) (241)
Fair Value 104,329 159,218
U.S. Treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 230,632 208,058
Gross Unrealized Gains 120 39
Gross Unrealized Losses (238) (401)
Fair Value $ 230,514 $ 207,696
Corporate and Government securities    
Debt Securities, Available-for-sale [Line Items]    
Investment portfolio, maximum maturity term 3 years  
[1] Time deposits excluded from fair value measurements.