Consolidated Statement of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	Total	COMMON STOCK	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE INCOME
TOTAL EQUITY BALANCE at Dec. 31, 2011	$ 483,910
STOCKHOLDERS' EQUITY BALANCE at Dec. 31, 2011	449,687	44,414	405,109	164
Increase (Decrease) in Stockholders' Equity
Net income	1,164		1,164
Other comprehensive gain	547			547
Common stock dividends (per share $0.06)	(2,721)		(2,721)
Stock-based compensation	6,737	246	6,491
TOTAL EQUITY BALANCE at Jun. 30, 2012	485,674
STOCKHOLDERS' EQUITY BALANCE at Jun. 30, 2012	455,414	44,660	410,043	711
NONCONTROLLING INTEREST at Jun. 30, 2012	$ 30,260