XML 104 R93.htm IDEA: XBRL DOCUMENT v3.4.0.3
Short-Term Borrowings - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2016
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2015
Short-term Debt [Line Items]        
Gross outstanding balance of repurchase agreements collateralized by securities percentage   108.00%    
Revolving line of credit   $ 494,380 $ 628,499 $ 463,007
Revolving Credit Facility [Member]        
Short-term Debt [Line Items]        
Revolving line of credit   $ 50,000    
Subsequent Event [Member] | Revolving Credit Facility [Member]        
Short-term Debt [Line Items]        
Revolving line of credit $ 75,000      
Revolving loan term 364 days      
Debt instrument variable rate 2.00%      
Subsequent Event [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Short-term Debt [Line Items]        
Debt instrument description One-month LIBOR plus 200 basis points