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Leases (Tables)
 12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Adoption Effect of the Derecognition of Build-to-Suit Lease Assets and Recognition of Operating Lease Right-of-Use Assets and Operating Lease Liabilities The adoption effect of derecognizing the build-to-suit assets and lease financing obligation, and recognizing operating lease right-of-use assets and operating lease liabilities on the consolidated balances sheets was as follows (in thousands):
Balance Sheet LocationDecember 31, 2019January 1, 2019December 31, 2018
Property, plant and equipment, net$814  $(26,676) $28,101  
Other accrued liabilities—  (552) 552  
Build-to-suit lease financing obligation—  (28,510) 28,510  
Operating lease right-of-use assets5,953  10,130  —  
Operating lease liabilities5,580  5,167  —  
Operating lease liabilities, noncurrent1,446  7,026  —  
Accumulated deficit135  135  —  
Components of Operating Lease Cost
The components of operating lease costs for the year ended December 31, 2019 were as follows (in thousands):

Operating lease costs$8,246  
Sublease income(3,933) 
Total operating lease costs, net$4,313  
Maturities of Operating Lease Liabilities
As of December 31, 2019, maturities of operating lease liabilities were as follows (in thousands):
2020$9,766  
20214,967  
20223,352  
20233,081  
20242,035  
Thereafter4,161  
Total operating lease payments27,362  
Less: Imputed interest(2,085) 
Total operating lease liabilities$25,277  
Future Minimum Lease Payments and Sublease Rental Payments under Noncancelable Operating Leases
As of December 31, 2018, the future minimum lease payments under non-cancelable operating leases and the build-to suit lease arrangement, net of sublease income rental payments, were as follows (in thousands):
2019$4,115  
20204,129  
20212,645  
20221,678  
20231,483  
Thereafter3,770  
        Total minimum payments17,820  
Less: Amount representing interest and taxes(7,564) 
        Total$10,256