XML 159 R110.htm IDEA: XBRL DOCUMENT v3.4.0.3
Capital Stock - Non-Vested Stock Option Activity and Related Information (Detail) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Options Outstanding Non-Vested Stock Options - beginning of year 202 389 723
Options, Granted 265 15 73
Options, Vested (167) (188) (401)
Options, Forfeited   (14) (6)
Options Outstanding Non-Vested Stock Options - end of year 300 202 389
Weighted-Average Grant Date Fair Value, Outstanding non-vested stock options - beginning of Year $ 9.37 $ 9.24 $ 8.74
Weighted-Average Grant Date Fair Value, Granted 7.74 11.50 10.54
Weighted-Average Grant Date Fair Value, Vested 9.07 9.30 8.57
Weighted-Average Grant Date Fair Value, Forfeited   9.01 9.46
Weighted-Average Grant Date Fair Value, outstanding non-vested stock options - end of year $ 8.09 $ 9.37 $ 9.24