XML 49 R38.htm IDEA: XBRL DOCUMENT v3.5.0.2
FAIR VALUE MEASUREMENTS - Changes to Level 3 Investment and Transfers (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Changes to the Company's investment classified as Level 3            
Transfers from level 1 to level 2 $ 7,984       $ 7,984  
Transfers between level 1, level 2 or level 3       $ 0   $ 0
Convertible notes            
Changes to the Company's investment classified as Level 3            
Balance at beginning of the period 678 $ 657 $ 635   $ 635  
Unrealized gains (losses) included in accumulated other comprehensive income   21 22      
Transfer out of level 3 due to conversion of convertible notes to common stock $ (678)          
Balance at end of the period   $ 678 $ 657