Goodwill and Other Impairment (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Roll Forward]
Balance, beginning of period		$ 78,823	$ 78,823
Balance, end of period	0		0
Developed Technology Impairment [Abstract]
Non-cash impairment charge			6,433
Water [Member]
Goodwill [Roll Forward]
Balance, beginning of period		78,823	78,823	77,415
Acquisition of Canada Bulk Water Exchange Business				1,536
Adjustments related to acquisition of Refill Business				178
Goodwill impairment			(79,146)
Effect of foreign currency translation			323	(306)
Balance, end of period	0		0	78,823
Developed Technology Impairment [Abstract]
Non-cash impairment charge	67,500	11,500
Electrotemp [Member]
Developed Technology Impairment [Abstract]
Non-cash impairment charge				2,900
Warranty receivable				$ 2,900