Computation of Basic and Diluted Earnings Per Common Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Income attributable to Dentsply International
Diluted		$ 314,213		$ 244,520
Shares
Basic	142,663	141,850	141,386
Incremental shares from assumed exercise of dilutive options	2,302	2,095	2,167
Net Income (Loss) Attributable to Parent	$ 313,192	$ 314,213	$ 244,520
Diluted	144,965	143,945	143,553
Earnings per common share
Basic	$ 2.20	$ 2.22	$ 1.73
Diluted	$ 2.16	$ 2.18	$ 1.70