Incentive Plan (Tables)

6 Months Ended

Jun. 30, 2013

Incentive Plan [Abstract]

Summary Of Stock Options

				Weighted
				Average
				Remaining	Aggregate
	Number of	Weighted		Contractual	Intrinsic
	Options	Average		Term	Value
	Granted	Exercise Price		(Years)	(000's)
Non-statutory stock options:
Outstanding, beginning of period	642,250	$	16.09
Options granted	—		—
Options forfeited	—		—
Options exercised	(57,175)		5.28
Options expired	—		—
Outstanding, end of period	585,075	$	17.15	2.23	$	1,453
Exercisable, end of period	585,075	$	17.15	2.23	$	1,453
Vested or expected  to vest, end of period	585,075	$	17.15	2.23	$	1,453

Summary Of Non-Vested Shares

		Weighted Average
	Number of	Grant Date Fair
Nonvested Shares	Shares	Value Per Share
Nonvested at beginning of period	1,986,059	$	15.10
Granted during period	1,042,281		14.35
Vested during period	(761,244)		14.69
Forfeited during period	(36,064)		14.64
Nonvested at end of period	2,231,032	$	14.91