Shareholders' Equity (Details) (USD $)		1 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended		9 Months Ended		1 Months Ended
	Apr. 10, 2013 Champion	Dec. 31, 2011 Common stock	Sep. 30, 2011 Common stock	Mar. 31, 2012 Common stock	Sep. 30, 2013 Common stock	Dec. 31, 2012 Common stock	May 31, 2011 Common stock	Sep. 30, 2013 Common stock Champion	Apr. 10, 2013 Common stock Champion	Aug. 31, 2011 Common stock Nalco Holding Company ("Nalco")
Shareholder's Equity
Common stock, shares issued									6,596,444
Consideration transferred in the form of common stock, and deposited in an escrow fund to satisfy adjustments to consideration and indemnification obligations (in shares)									1,258,115
Portion of consideration transferred and deposited in an escrow account to fund post-closing adjustments to the consideration and covenant and other indemnification obligations	$ 100,000,000
Common stock, shares authorized to be repurchased							15,000,000
Additional shares authorized to be repurchased contingent upon merger										10,000,000
Common Stock, value of share repurchase program			1,000,000,000
Amount of common stock to be repurchased under ASR agreement		500,000,000
Shares received under ASR agreement		8,330,379		122,314		122,314
Common stock, shares reacquired through open and private market purchases					2,375,529	2,722,883
Number of shares repurchased from escrow account								1,258,115
Shares authorized to be repurchased					13,434,567
Dollar value of shares remaining to be purchased					$ 74,000,000