Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary Of Investments (Details)

v3.6.0.2
Fair Value Measurements - Summary Of Investments (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 3,409 $ 2,978
Gross unrealized gains in Accumulated OCI 1,313 904
Gross unrealized losses in Accumulated OCI (194) (267)
Fair value 4,528 3,615
Common stock investments, available for sale    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 3,409 2,978
Gross unrealized gains in Accumulated OCI 1,313 904
Gross unrealized losses in Accumulated OCI (194) (267)
Fair value $ 4,528 $ 3,615