Condensed Consolidated Financial Statements - Components of Other Current Assets and Other Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Current debt issuance costs	$ 6,055	$ 6,244
Other	6,601	9,889
Total other current assets	26,369	40,417
Settlement payables	13,648	21,715
Accrued interest	2,467	7,256
Vendor financed licenses	10,720	7,340
Royalties payable	3,019	4,070
Other	20,458	27,124
Total other current liabilities	50,312	67,505
Settlement deposits [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Other assets settlement	6,898	13,252
Settlement receivables [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Other assets settlement	$ 6,815	$ 11,032