Annual report pursuant to Section 13 and 15(d)

Equity Transactions - Additional Information (Details)

v3.6.0.2
Equity Transactions - Additional Information (Details) - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Equity Transactions [Line Items]      
Common stock, shares authorized 200,000,000 200,000,000  
Common Stock, Regular      
Equity Transactions [Line Items]      
Paid cash dividends, per share $ 0 $ 0 $ 0.40
Minimum      
Equity Transactions [Line Items]      
Common stock, shares authorized 118,300,000    
Maximum      
Equity Transactions [Line Items]      
Common stock, shares authorized 200,000,000    
Exchange Transaction | Common Stock      
Equity Transactions [Line Items]      
Debt conversion, common stock shares issued 60,400,000