XML 167 R146.htm IDEA: XBRL DOCUMENT v3.10.0.1
Valuation and Qualifying Accounts (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Allowance for Doubtful Accounts      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period $ 2,219 $ 2,356 $ 2,407
Additions Charged to Cost and Expenses   4  
Other 20    
Deductions 566 141 51
Balance at End of Period 1,673 2,219 2,356
Inventory Reserve      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period 102,896 116,016 119,376
Additions Charged to Cost and Expenses 11,242 8,844 17,493
Other 368 (126) 4,417
Deductions 13,727 21,838 25,270
Balance at End of Period 100,779 102,896 116,016
Valuation Allowance of Deferred Tax Assets      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period 63,919 48,369 43,039
Additions Charged to Cost and Expenses 6,333 15,571 5,413
Other    
Deductions 400 21 83
Balance at End of Period $ 69,852 $ 63,919 $ 48,369