Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Restricted Stock (Details)

v3.7.0.1
Shareholders' Equity - Restricted Stock (Details) - Restricted shares
$ in Thousands
3 Months Ended
Jan. 20, 2017
USD ($)
shares
Jan. 13, 2017
USD ($)
shares
Mar. 31, 2017
USD ($)
installment
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares | shares 301,000 1,190,000 1,491,000
Fair Value | $ $ 674 $ 2,844 $ 3,518
Number of vesting installments | installment     4