v2.4.0.8

Accounts Receivable Reserve for uncollectible overdrawn accounts activity (Details) (Reserve for uncollectible overdrawn accounts [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Reserve for uncollectible overdrawn accounts [Member]
Uncollectible Overdrawn Accounts [Roll Forward]
Balance, beginning of period	$ 15,424	$ 15,722	$ 15,677	$ 15,309
Fees	12,489	15,473	27,156	29,113
Purchase transactions	596	670	1,399	1,480
Charge-offs	15,260	13,906	30,983	27,943
Balance, end of period	$ 13,249	$ 17,959	$ 13,249	$ 17,959

X

- Definition

Recoveries of amounts previously reserved for.

+ References

No definition available.

+ Details

Name:	gdot_ChargeOffs
Namespace Prefix:	gdot_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Fees consist of the expense associated with the charge of a monthly maintenance fee when the account has become inactive or overdrawn.

+ References

No definition available.

+ Details

Name:	gdot_Fees
Namespace Prefix:	gdot_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Purchase transactions consist of transactions we honor in excess of a cardholder’s account balance.

+ References

No definition available.

+ Details

Name:	gdot_PurchaseTransactions
Namespace Prefix:	gdot_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_MovementInValuationAllowancesAndReservesRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration