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Leases - Components of Lease Expense and Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Options to extend leases true    
Components of lease expense      
Operating lease expense $ 22,978 $ 16,513  
Operating lease liabilities      
Accrued liabilities $ 79,532   $ 74,036
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accrued Liabilities, Current    
Noncurrent operating lease liabilities, net of current portion $ 176,546   171,225
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Noncurrent operating lease liabilities, net of current portion    
Operating lease liabilities $ 256,078   $ 245,261
Maximum      
Renewal term 5 years