Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narrative (Details)

v3.6.0.2
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation [Abstract]      
Stock-based compensation expense $ 12,300 $ 14,400 $ 14,900
Capitalized stock-based compensation $ 4,900 $ 5,743 $ 5,944
Additional time over vesting period 1 year    
Options granted for compensation plan 0 0 0
Unrecognized compensation expense $ 14,300    
Weighted average period 1 year 7 months 6 days