Condensed Consolidated Statements of Equity Statement - USD ($) $ in Thousands	Total	Parent [Member]	Common Stock [Member]	Preferred Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Shares, Issued			35,927,985		21,643
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			$ 359	$ 0	$ (911)	$ 689,209	$ 448,702
Shares issued pursuant to sale of equity			4,002,000
Exercise of stock options			0
Issuance of stock awards, net of forfeitures			191,623
Treasury Stock, Shares, Acquired					93,898
Stock Issued During Period, Shares, Treasury Stock Reissued					(97,995)
Deferred Compensation Plan, Shares, Change During the Period					4,872
Sale of Stock, Consideration Received on Transaction			$ 40			202,811
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			$ 2
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature						0
Share-based Compensation	$ 14,278					14,419
Stock Issued During Period, Value, Treasury Stock Reissued					$ 4,632	(4,633)
DeferredCompensationPlan,Value,ChangeDuringthePeriod					(249)
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation						1,232
Net Income (Loss) Attributable to Parent	(71,302)						(71,302)
Treasury Stock, Value, Acquired, Cost Method					$ (4,575)
Shares, Issued			40,121,608		22,418
Shares, Outstanding			40,099,190
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		$ 1,279,736	$ 401		$ (1,103)	903,038	377,400
Shares, Issued			40,174,776		20,220
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			$ 402	$ 0	$ (1,009)	907,383	380,422
Shares issued pursuant to sale of equity			15,799,906
Exercise of stock options			46,084
Issuance of stock awards, net of forfeitures			259,778
Treasury Stock, Shares, Acquired					90,695
Stock Issued During Period, Shares, Treasury Stock Reissued					(91,895)
Deferred Compensation Plan, Shares, Change During the Period					6,834
Sale of Stock, Consideration Received on Transaction			$ 158			854,932
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			$ 3
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature						23,264
Share-based Compensation	15,205					15,202
Stock Issued During Period, Value, Treasury Stock Reissued					$ 5,179	(5,180)
DeferredCompensationPlan,Value,ChangeDuringthePeriod					(364)
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation						1,063
Net Income (Loss) Attributable to Parent	$ (190,289)						(190,289)
Treasury Stock, Value, Acquired, Cost Method					$ (5,106)
Shares, Issued			56,280,544		25,854
Shares, Outstanding			56,254,690
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		$ 1,986,060	$ 563		$ (1,300)	$ 1,796,664	$ 190,133