Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortization Expense

Amortization expense associated with our intangible assets, which has been reflected as a separate operating expense caption within the accompanying condensed consolidated statements of income and comprehensive income, consisted of the following:

	Quarter Ended March 31,				Six Months Ended March 31,
	2018		2017		2018		2017
	(In thousands)
Cost of revenues	$	615	$	1,687	$	1,321	$	3,373
Selling, general and administrative expenses	1,069		1,625		2,151		3,259
	$	1,684	$	3,312	$	3,472	$	6,632

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated future intangible asset amortization expense associated with intangible assets existing at March 31, 2018 was as follows (in thousands):

Year Ended September 30,
2018 (excluding the six months ended March 31, 2018)	$	3,206
2019	6,207
2020	3,744
2021	2,463
2022	2,314
Thereafter	217
	$	18,151

Schedule of Goodwill

The following table summarizes changes to goodwill during the six months ended March 31, 2018, both in total and as allocated to our segments:

	Applications		Scores		Decision Management Software		Total
	(In thousands)
Balance at September 30, 2017	$	588,288	$	146,648	$	69,478	$	804,414
Foreign currency translation adjustment	7,959		—		734		8,693
Balance at March 31, 2018	$	596,247	$	146,648	$	70,212	$	813,107