Composition Of Certain Financial Statement Captions (Tables)

9 Months Ended

Jun. 30, 2017

Composition Of Certain Financial Statement Captions [Abstract]

Schedule Of Accounts Receivable

Accounts Receivable

	June 30, 2017			September 30, 2016
Trade accounts receivable	$	70,594		$	66,229
Accounts receivable from patent administration program customers	14,787			11,829
Accounts receivable, gross	85,381			78,058
Less: allowance for doubtful accounts	(3,279		)	(2,370		)
Total	$	82,102		$	75,688

Schedule Of Inventories

Inventories

	June 30, 2017		September 30, 2016
Raw materials	$	4,755	$	3,526
Work in process	2,389		4,020
Finished goods	12,806		8,808
Total	$	19,950	$	16,354

Schedule Of Prepaid Expenses And Other Current Assets

Prepaid Expenses And Other Current Assets

	June 30, 2017		September 30, 2016
Prepaid expenses	$	16,510	$	13,440
Other current assets	10,311		11,578
Income tax receivable	2,969		1,284
Total	$	29,790	$	26,302

Schedule Of Accrued Liabilities

Accrued Liabilities

	June 30, 2017		September 30, 2016
Accrued royalties	$	1,962	$	1,939
Amounts payable to patent administration program partners	51,105		34,472
Accrued compensation and benefits	71,822		71,261
Accrued professional fees	5,685		6,528
Unpaid PP&E additions	6,359		17,100
Other accrued liabilities	40,052		37,755
Total	$	176,985	$	169,055

Schedule Of Other Non-Current Liabilities

Other Non-Current Liabilities

	June 30, 2017		September 30, 2016
Supplemental retirement plan obligations	$	2,820	$	2,540
Non-current tax liabilities	85,792		68,254
Other liabilities	12,592		12,128
Total	$	101,204	$	82,922