Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.5.0.2
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Allowance for doubtful accounts $ 8,519 $ 9,928 $ 9,043
Accumulated depreciation for property, plant and equipment $ 403,244 $ 363,278 $ 354,273
Preferred stock, shares authorized (in shares) 10,000 10,000 10,000
Preferred stock, shares issued (in shares) 0 0 0
Preferred stock, shares outstanding (in shares) 0 0 0
Common stock, no par value (in dollars per share) $ 0 $ 0 $ 0
Common stock, shares authorized (in shares) 250,000 250,000 250,000
Common stock, shares issued (in shares) 69,792 69,277 70,376
Common stock, shares outstanding (in shares) 69,792 69,277 70,376