CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares in connection with acquisitions (in shares)	52,542	19,685	35,714
Vesting of restricted stock for common stock (in shares)	67,021	75,419	68,069
Acquisition of treasury stock (in shares)	5,400	76,300	65,171