Stock Plans (Restricted Shares Outstanding) (Details) (Restricted Stock [Member], USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at beginning of period (in shares)	6,234,000
Shares granted (in shares)	3,836,000	3,355,000
Shares vested (in shares)	(2,365,000)
Shares forfeited (in shares)	(282,000)
Balance at end of period (in shares)	7,423,000
Balance at beginning of period (in dollars per shares)	$ 4.80
Restricted stock granted (in dollars per shares)	$ 4.74
Restricted stock vested (in dollars per shares)	$ 5.22
Restricted stock forfeited (in dollars per shares)	$ 4.51
Balance at end of period (in dollars per shares)	$ 4.65	$ 4.10
Balance at beginning of period	$ 28,988,000
Restricted stock granted	24,974,000	14,000,000
Restricted stock vested	15,399,000	12,900,000
Balance at end of period	$ 48,321,000	$ 26,300,000