XML 91 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
Schedule of Reported Financial Assets and Liabilities (Detail) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets $ 1,204,658 $ 1,904,137
Liabilities 71,057 45,548
Other Current Liabilities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 514 446
Cash and Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 926,752 429,843
Marketable securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 190,096 1,347,979
Long-term marketable securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 87,731 125,926
Prepayments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 79 389
Contingent Consideration    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 34,865 24,497
Long Term Contingent Consideration    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 35,678 20,605
Quoted Prices in Active Markets for Identical Instruments (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 590,415 427,720
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Cash and Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 566,037 404,290
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Long-term marketable securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 24,378 23,430
Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 614,243 1,476,417
Liabilities 514 446
Significant Other Observable Inputs (Level 2) | Other Current Liabilities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 514 446
Significant Other Observable Inputs (Level 2) | Cash and Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 360,715 25,553
Significant Other Observable Inputs (Level 2) | Marketable securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 190,096 1,347,979
Significant Other Observable Inputs (Level 2) | Long-term marketable securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 63,353 102,496
Significant Other Observable Inputs (Level 2) | Prepayments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Assets 79 389
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 70,543 45,102
Significant Unobservable Inputs (Level 3) | Contingent Consideration    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities 34,865 24,497
Significant Unobservable Inputs (Level 3) | Long Term Contingent Consideration    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Liabilities $ 35,678 $ 20,605