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Composition of Certain Balance Sheet Captions - Composition of Certain Balance Sheet Captions (Detail) - USD ($) $ in Thousands | Mar. 31, 2017 | Mar. 31, 2016
--- | --- | ---
Accounts receivable, net: |  |
Accounts receivable, Billed | $ 145,626 | $ 146,309
Accounts receivable, Unbilled | 119,565 | 141,568
Allowance for doubtful accounts | (1,470) | (1,153)
Accounts receivable, net | 263,721 | 286,724
Inventories: |  |
Raw materials | 56,096 | 46,757
Work in process | 25,820 | 27,200
Finished goods | 81,285 | 71,204
Inventories | 163,201 | 145,161
Prepaid expenses and other current assets: |  |
Prepaid expenses | 51,856 | 41,784
Other | 5,980 | 5,799
Prepaid expenses and other current assets | 57,836 | 47,583
Other assets: |  |
Investment in unconsolidated affiliate | 141,894 |
Deferred income taxes | 134,764 | 134,721
Capitalized software costs, net | 203,686 | 163,061
Patents, orbital slots and other licenses, net | 16,500 | 16,900
Other | 32,522 | 25,323
Other assets | 529,366 | 340,005
Accrued liabilities: |  |
Collections in excess of revenues and deferred revenues | 76,682 | 64,624
Accrued employee compensation | 41,691 | 35,056
Accrued vacation | 33,214 | 28,646
Warranty reserve, current portion | 7,796 | 7,867
Current portion of other long-term debt | 288 | 274
Other | 65,576 | 47,877
Accrued liabilities | 225,247 | 184,344
Other liabilities: |  |
Deferred revenue, long-term portion | 4,617 | 5,470
Deferred rent, long-term portion | 10,743 | 8,808
Warranty reserve, long-term portion | 3,262 | 3,567
Satellite performance incentives obligation, long-term portion | 19,164 | 19,514
Deferred income taxes, long-term | 1,936 | 12
Other | 3,000 |
Other liabilities | 42,722 | 37,371
Satellites, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 1,434,824 | 1,173,880
Less accumulated depreciation and amortization | (326,554) | (275,683)
Property and equipment, net | 1,108,270 | 898,197
Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 1,202,589 | 1,050,886
Less accumulated depreciation and amortization | (661,981) | (563,976)
Property and equipment, net | 540,608 | 486,910
Satellites [Member] | Satellites, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 559,380 | 559,094
Capital Lease of Satellite Capacity - Anik F2 [Member] | Satellites, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 99,090 | 99,090
Construction in Progress [Member] | Satellites, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 776,354 | 515,696
Construction in Progress [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 116,902 | 73,535
Equipment and Software [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 679,008 | 568,663
CPE Leased Equipment [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 271,917 | 260,409
Less accumulated depreciation and amortization | (158,200) | (136,400)
Furniture and Fixtures [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 30,539 | 25,501
Leasehold Improvements [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 80,727 | 71,895
Building [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | 8,923 | 8,923
Land [Member] | Property and Equipment, Net [Member] |  |
Property and equipment, net: |  |
Property and equipment | $ 14,573 | $ 41,960

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- Definition Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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