Income Taxes (Reconciliation of Unrecognized Tax Liabilities) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Balance at beginning of period		$ 4,026	$ 3,845	$ 511
Increases related to tax positions taken during the current period		954	225	880
Increases related to tax positions taken during a prior period		2	14	2,869
Decreases related to expiration of statute of limitations		(49)	(58)	(415)
Decreases related to settlement with taxing authorities	$ (600)	(4,149)
Balance at end of period		$ 784	$ 4,026	$ 3,845

No definition available.

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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