v3.3.1.900
FAIR VALUE MEASUREMENTS - Fair value on a recurring basis (Details) - Recurring basis - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Total Carrying Value    
Other long-term assets:    
Total assets at fair value $ 19,641 $ 21,108
Total Carrying Value | Money Market Mutual Funds    
Other long-term assets:    
Money Market Mutual Funds 132 224
Total Carrying Value | Mutual Fund Large U.S. Equity    
Other long-term assets:    
Equity securities, available-for-sale: 2,057 2,879
Total Carrying Value | Mutual Fund Small/Mid U.S. Equity    
Other long-term assets:    
Equity securities, available-for-sale: 2,222 1,558
Total Carrying Value | Mutual Fund International    
Other long-term assets:    
Equity securities, available-for-sale: 833 717
Total Carrying Value | Mutual Fund Balance    
Other long-term assets:    
Equity securities, available-for-sale: 747 760
Total Carrying Value | Mutual Fund Fixed Income    
Other long-term assets:    
Equity securities, available-for-sale: 750 541
Total Carrying Value | RealD Inc. | Common Stock    
Other long-term assets:    
Equity securities, available-for-sale: 12,900 14,429
Quoted prices in active market (Level 1)    
Other long-term assets:    
Total assets at fair value 19,641 21,108
Quoted prices in active market (Level 1) | Money Market Mutual Funds    
Other long-term assets:    
Money Market Mutual Funds 132 224
Quoted prices in active market (Level 1) | Mutual Fund Large U.S. Equity    
Other long-term assets:    
Equity securities, available-for-sale: 2,057 2,879
Quoted prices in active market (Level 1) | Mutual Fund Small/Mid U.S. Equity    
Other long-term assets:    
Equity securities, available-for-sale: 2,222 1,558
Quoted prices in active market (Level 1) | Mutual Fund International    
Other long-term assets:    
Equity securities, available-for-sale: 833 717
Quoted prices in active market (Level 1) | Mutual Fund Balance    
Other long-term assets:    
Equity securities, available-for-sale: 747 760
Quoted prices in active market (Level 1) | Mutual Fund Fixed Income    
Other long-term assets:    
Equity securities, available-for-sale: 750 541
Quoted prices in active market (Level 1) | RealD Inc. | Common Stock    
Other long-term assets:    
Equity securities, available-for-sale: $ 12,900 $ 14,429